Navatek Bribery Investigation Explained: Susan Collins, Lindsey Graham, and the FBI Case

Updated October 29, 2026

A defense contractor illegally moved $150,000 through a shell company to a super PAC supporting Sen. Susan Collins. Its former chief executive later told federal investigators that political contributions were part of a larger strategy to obtain military research funding through influential members of Congress. The FBI investigated a possible bribery scheme extending to lawmakers in Maine and South Carolina, but the broader case did not result in charges against any member of Congress.

The campaign-finance violation is established. The alleged bribery agreements with lawmakers have not been proven in court. Understanding the difference is essential to understanding what the Navatek case reveals, and what it does not.

In September and October 2026, ProPublica published investigations based on internal company emails, legal records, interviews and FBI materials. Its reporting connected former Navatek CEO Martin Kao's illegal donations with congressional relationships involving Collins, the late Sen. Lindsey Graham, Rep. James Clyburn and Rep. Joe Wilson. The lawmakers or their representatives disputed allegations of improper exchanges.

The public record raises several different questions: Where did the money go? What did taxpayers fund? What did the FBI find? What would prosecutors have needed to prove? And why did the expanded investigation stop before those questions were resolved in court?

For the Collins-specific record, see Sherafy’s separate explainer on the FBI investigation and Navatek donations. This article follows the story beyond Maine to the broader South Carolina inquiry and its unresolved allegations.

What Was Proven, and What Remains Alleged?

These conclusions draw on the Department of Justice's 2022 guilty-plea announcement, the FEC's public enforcement file, MUR 7690, and ProPublica's original investigations.

The crucial distinction is between a crime that prosecutors established and a separate theory of misconduct that investigators were still examining. An illegal political contribution does not automatically prove that a politician agreed to exchange official action for the money. Nor does the absence of a bribery charge establish that every investigative lead was exhausted.

Who Were Navatek and Martin Kao?

Navatek was a Hawaii-based naval engineering and defense research company founded in the 1970s. Its work included experimental vessels, propulsion systems, maritime structures and other Navy-related research. Over time, it developed partnerships and operations outside Hawaii, including in Maine and South Carolina.

Martin Kao had worked in the company's financial management before becoming its chief executive and owner. Under Kao, the company pursued new contracts by combining technical research proposals with lobbying, congressional relationships and campaign fundraising. Navatek later operated as Martin Defense Group; the business ultimately became PacMar Technologies after Kao's removal.

Kao's legal troubles involved two separate categories of crimes:

• Campaign finance: In September 2022, he pleaded guilty to offenses connected to unlawful campaign contributions, including disguising the true contributor to a political committee and arranging reimbursed contributions through other people.
• Bank and pandemic-relief fraud: In February 2025, a federal judge sentenced him to 87 months in prison for COVID-relief wire fraud, money laundering and bank fraud, and ordered approximately $12.84 million in restitution to the Small Business Administration.

The DOJ's sentencing announcement establishes that the 87-month sentence concerned the loan and bank fraud case. It was not a conviction for bribing Collins, Graham, Clyburn or Wilson.

Kao later cooperated with federal investigators and alleged that his company's political spending was used to obtain federal funding. His admissions about the illegal contributions have independent legal support; his allegations about corrupt agreements with politicians require separate evaluation.

The $150,000 Shell-Company Donation: Follow the Money

The most conclusive evidence in the story is not an anonymous accusation. It is a signed federal enforcement agreement setting out the dates, accounts and statutory violations.

According to the FEC's February 2025 conciliation agreement:

1. December 26, 2019: Navatek issued a $150,000 check from its bank account to an intermediary LLC.
2. December 27, 2019: That LLC issued a matching $150,000 check to 1820 PAC.
3. December 31, 2019: The contribution was identified for reporting purposes under the intermediary's name, rather than Navatek's.

The intermediary was the Society of Young Women Scientists and Engineers LLC. The public campaign-finance disclosure used the name Society of Young Women Scientist and Engineers, dropping the final s from Scientists.

That oddity helped draw attention to a newly formed entity apparently making an unusually large political contribution. The Campaign Legal Center filed an FEC complaint on February 3, 2020, questioning whether the LLC concealed the true donor.

Why was the transaction illegal?

Two restrictions applied:

Federal-contractor prohibition. Navatek held a federal defense contract at the time. Federal law bars covered government contractors from making federal political contributions, including contributions to super PACs.

Contribution-in-another-person's-name prohibition. Federal election law also prohibits attributing a contribution to a different person or entity to conceal the actual contributor. Routing the money through the LLC did not make Navatek cease to be the true contributor.

In the signed agreement, PacMar acknowledged violations of 52 U.S.C. §§ 30119 and 30122 and agreed to a $325,000 civil penalty. It disputed that the company's violations were knowing and willful, a separate legal determination on which the FEC did not make a final probable-cause finding in that settlement.

PacMar also maintained that Kao and other former executives had acted contrary to company policy and that the business had been harmed by their misconduct. Those arguments do not erase the violations acknowledged in the settlement, but they matter when describing whose conduct was adjudicated and how the company's later management responded.

Did the money come directly from taxpayers?

The FEC record establishes that the contribution came from Navatek's bank account while Navatek was a federal contractor. It does not trace those exact dollars back to a specific Navy payment.

That distinction matters. A company may receive government contract revenue, pay operating expenses and hold other funds in its accounts. Establishing that a particular contribution came from a contractor is different from proving that dollars from a specified contract were diverted from an authorized purpose.

Investigating the use of taxpayer funds would require accounting records, contract terms, invoices, indirect-cost allocations and payment records. The public enforcement record is sufficient to establish the prohibited political contribution without establishing every aspect of that broader financial question.

Did Susan Collins personally receive the money?

The established $150,000 contribution went to 1820 PAC, not Collins' personal account and not directly to her authorized Senate campaign committee.

A super PAC can independently spend money to support a candidate but cannot lawfully coordinate its independent expenditures with that candidate's campaign. ProPublica reported evidence that the head of 1820 PAC was informed of Kao's use of a shell company; the PAC's chair, Scott Reed, denied communicating with Collins or her staff about Kao and Navatek in the manner alleged.

The FEC ultimately dismissed an allegation that 1820 PAC and its treasurer improperly failed to refund the contribution under the relevant regulation. That outcome should not be conflated with either a bribery finding or a complete adjudication of every allegation about communications among the participants.

How Did a Defense Contractor Seek Funding Through Congress?

Navatek's model depended on more than supplying conventional products through a straightforward procurement competition. It sought research funding for technical projects, sometimes through partnerships with universities in the states or districts of influential lawmakers.

ProPublica reported that company executives and lobbyists identified congressional appropriators, promoted proposed projects, organized political fundraising and worked to get specialized research descriptions into federal defense-budget materials. Internal documents and former employees described a deliberate effort to cultivate relationships with legislators who could advance those priorities.

To understand the significance, separate three different decisions:

This is why claims that a politician “gave a company $32 million” need to be checked against actual appropriations, awards, modifications and disbursements.

Is advocating for a local contractor inherently corrupt?

No. Elected officials routinely advocate for projects, employers, universities and infrastructure in their states or districts. That can be a legitimate part of representation.

A contractor may also lobby for federal spending and, where permitted, employees or executives may personally contribute to campaigns.

The alleged misconduct in this case is more specific: Kao said political support was negotiated as the price of official assistance. If proven under the elements of an applicable statute, that could amount to bribery. Mere proximity between donations and favorable funding decisions, however suspicious, does not itself establish the required agreement.

Did Navatek produce anything useful for the Navy?

ProPublica reported that former executives questioned the practical value of many projects and that some research never became a deployed military product. Its reporting also described Navatek's work on a large 3D-printed boat and other experimental marine technologies.

Research that never becomes a deployed product is not automatically fraudulent. Military research and development often evaluates concepts that fail, prove uneconomical or are not adopted. To assess whether taxpayers received what a contract required, investigators would need the statement of work, deliverables, acceptance documentation, technical evaluations and any findings of misrepresentation or misuse of funds.

The serious question is not simply whether a prototype reached production. It is whether contract objectives and payment requirements were honestly met and whether Congress or an agency was improperly influenced in selecting and funding the work.

What Evidence Involves Susan Collins?

Collins was an influential supporter of naval research connected to Navatek's Maine operations. She publicly promoted an approximately $8 million Navy research project associated with the company and its local partners, and company executives took part in publicity events with her in 2019.

Federal investigators subsequently examined the relationship between Navatek's political contributions and the funding Collins helped advance.

According to ProPublica's September 22 investigation, Kao described a late-2019 meeting at a Washington bakery with Scott Reed, who led the pro-Collins super PAC. Kao said Reed sought a substantial donation and that they discussed federal funding support. Reed and Collins' representatives denied the allegation of an improper exchange.

The emails that gave investigators questions to pursue

ProPublica reported several documentary details relevant to Kao's account:

• Kao discussed concealing Navatek as the true source of a six-figure contribution through an LLC.
• Emails showed that Reed was informed about the use of that intermediary.
• Shortly after the contribution, someone working for Reed asked a Navatek representative for Kao's contact information, saying Collins wanted to thank him.
• A subsequent internal company email described Kao's understanding that Collins would support approximately $32 million in Navy funding.
• Other company and campaign communications mixed discussions about naval research projects with political fundraising activity.

These records make the story more substantial than a former executive's unsupported allegation. They support parts of the chronology and show how the company and political fundraising operation interacted.

But corroborating a meeting, an email or a contribution does not necessarily corroborate Kao's assertion that Collins personally agreed to a criminal exchange.

Collins' office has vigorously denied bribery and pay-to-play claims. Reed denied communicating with Collins or her staff about Kao or Navatek. Those responses are part of the evidentiary record and should be evaluated alongside, rather than substituted for, the underlying documents.

Did $150,000 buy a $32 million contract?

The viral version often presents this as a completed transaction: a $150,000 bribe in exchange for $32 million in federal contracts.

That wording goes beyond what has been established.

The $150,000 contribution was real and unlawful. The $32 million figure came from an internal statement about expected or promised funding support. That statement is relevant evidence of what Kao believed or represented, but it is not, by itself, proof of a contract worth exactly $32 million, a realized payment of that amount, or a bribery agreement.

Even the seemingly striking ratio of $32 million to $150,000 — roughly 213 to 1 — is not a verified return on a bribe. It compares an alleged funding commitment with a proven contribution and assumes a causal connection not established by those figures alone.

A reliable accounting would need to identify each relevant Navy award, the recipient legal entity, the award date, the obligated value, payments made and any relationship to the congressional funding language.

Was Collins cleared by the FBI?

Collins and her representatives have cited an earlier FBI and Justice Department inquiry in saying she and her campaign were cleared. The FBI also told ProPublica that an earlier investigation had found nothing implicating Collins or her campaign.

However, the 2026 reporting concerned a later investigative phase, prompted by Kao's cooperation and allegations in 2022-2024. Agents were still examining those claims into early 2025, according to documents reported by ProPublica in its September 23 follow-up.

The two propositions are not interchangeable. No charges resulted from the earlier inquiry; the broader later investigation reportedly stopped before reaching a comparable public conclusion.

Neither fact demonstrates that Collins committed bribery. Neither allows the unresolved later inquiry to be described simply as allegations already investigated and rejected years before they were made.

What About Lindsey Graham, James Clyburn and Joe Wilson?

The inquiry expanded to South Carolina, where Navatek sought Navy funding in partnership with the University of South Carolina and cultivated lawmakers from both parties.

According to ProPublica's October 20 investigation, Congress approved $9.5 million for a research initiative in December 2019. Political contributions and additional requests for congressional support followed. The precise timing matters: at least some of the relevant funding was authorized before the subsequent donations and meetings, undermining any simplistic chronology in which every dollar of funding followed a campaign payment.

Lindsey Graham: A private dinner and disputed bargain

On March 3, 2020, Graham met Navatek executives and a lobbyist at a Washington restaurant. The meeting was associated with an agreement to raise $40,000 in campaign contributions for access to the senator, according to communications and interviews reported by ProPublica.

Kao later alleged that Graham sought a larger contribution commitment in return for help securing additional research funding. A lobbyist present at the dinner disputed that an improper exchange occurred and said campaign contributions associated with the event were understood to be lawful. Graham's spokesperson likewise denied any quid pro quo.

Graham's office acknowledged supporting the South Carolina research initiative but said the project had Navy backing and that its support was not motivated by contributions.

Graham died July 11, 2026, before publication of the October investigation. His representatives rejected the allegations after his death.

ProPublica reported a further complication: the company that ultimately benefited from a contract connected to the effort was Integer Technologies, formed by former Navatek executives Duke Hartman and Joshua Knight. That distinction prevents a simple equation of congressional funding, Navatek revenue and money received by Kao.

James Clyburn: Funding support and later contributions

Kao told investigators that he discussed a large contribution commitment with Clyburn in connection with congressional support for the company's projects.

Investigators found records of donations by Kao and family members around the relevant period, and ProPublica described a related company donation to a university with ties to the congressman. Clyburn's spokesperson confirmed a meeting but did not corroborate Kao's allegation of an illegal bargain.

A meeting and political contributions are established events. The claim that Clyburn agreed to sell official action remains unproven.

Joe Wilson: House-side defense funding support

Navatek also approached Wilson, whose work on the House Armed Services Committee made him relevant to defense policy and funding proposals.

Kao alleged a contribution-for-support understanding with Wilson. The company's lobbyist disputed the allegation, and Wilson's spokesperson said the congressman complied with FEC campaign-donation rules.

The public evidence establishes contacts, political contributions and the company's pursuit of congressional support. It does not establish that Wilson entered into a criminal bribery agreement.

Were the lawmakers formally investigated as suspects?

The distinction is narrower than many summaries suggest.

ProPublica reported that FBI investigators formally identified Hartman, Knight and Integer Technologies as subjects in the expanded bribery inquiry. The agents were also examining Graham's, Clyburn's and Wilson's interactions with Navatek, and viewed the matter as potentially implicating politicians later.

At that stage, the lawmakers had not been formally designated subjects of the expanded investigation described in the records. Hartman and Knight were not charged.

Being mentioned in an investigative report, being examined as part of an inquiry, becoming an investigative subject, being indicted and being convicted are different statuses. Reporting should not collapse them into one.

What Did the FEC Decide About Other Donations?

The 1820 PAC settlement was not the only issue considered in MUR 7690.

The Commission also considered allegations involving contributions to Collins' authorized campaign made through individuals connected to the company. These were distinct from the $150,000 super PAC transaction.

A proposal to open a separate enforcement matter and pursue additional findings concerning those direct-campaign contributions failed on a 3-3 vote. The Commission also rescinded one earlier preliminary finding involving certain contractor contributions to Collins' campaign while retaining the settlement of the super PAC violations.

This is an unusually important distinction for readers:

• The $150,000 super PAC contribution was resolved through a settlement acknowledging statutory violations and imposing a penalty.
• Additional allegations about direct-campaign contributions were not fully pursued through the proposed separate FEC matter after the split vote.
• The FEC process did not adjudicate whether Collins or another member of Congress committed criminal bribery.

A failed vote to proceed is not a court finding that every allegation was false. A preliminary agency allegation that never secured a final determination is likewise not proof that a violation occurred.

The Timeline: How a Campaign-Finance Case Became a Wider Bribery Inquiry

Sources: FEC enforcement file, DOJ guilty plea, DOJ sentencing, and ProPublica's September and October reports.

Why Isn't an Illegal Campaign Donation Automatically Bribery?

Campaign-finance law and criminal bribery law answer different questions.

Campaign-finance law asks whether the contribution itself was permitted and accurately disclosed. A contribution may be illegal because its source was prohibited, its amount exceeded a limit, or it was made in another person's name — regardless of whether a politician promised anything in return.

Bribery law asks whether someone corruptly offered, sought or accepted something of value in exchange for official action or other conduct covered by the statute. That usually requires proving the illegal agreement and the necessary intent, not merely demonstrating that a donor wanted access or favorable treatment.

Why can corporations donate to super PACs but Navatek could not?

Under current FEC guidance on super PAC contributions, independent-expenditure-only committees can generally accept unlimited contributions from eligible corporations and individuals. But federal contractors remain prohibited contributors.

Navatek's government-contractor status therefore mattered even though the recipient was a super PAC rather than a candidate committee.

Separately, using another entity's name to conceal the true contributor violates the rule against straw donations or contributions in the name of another.

What is quid pro quo?

Quid pro quo means an exchange of one thing for another. In corruption cases, the disputed exchange could be campaign support for an official act.

Under 18 U.S.C. § 201, federal bribery includes specified corrupt offers, demands or receipts of things of value tied to official action or other prohibited conduct. The statute expressly includes members of Congress in its definition of federal public officials.

A corrupt agreement need not be written down as a contract. Prosecutors can use admissible direct or circumstantial evidence, including communications, testimony and conduct. But the required elements must be established beyond a reasonable doubt in a criminal case.

Did Citizens United or the Supreme Court make congressional bribery legal?

No. It is more accurate to say that campaign-finance and public-corruption jurisprudence sets boundaries around which conduct can be regulated or prosecuted, while bribery and prohibited-contribution laws still exist.

Several Supreme Court decisions address different parts of that landscape:

• McCormick v. United States (1991): A pre-Roberts Court decision addressing the quid pro quo requirement for campaign contributions under the Hobbs Act.
• Citizens United v. FEC (2010): A decision protecting certain independent political expenditures; it did not invalidate the federal bribery statute or the government-contractor contribution ban.
• McDonnell v. United States (2016): A decision interpreting what qualifies as an official act for particular public-corruption statutes.
• Snyder v. United States (2024): A decision distinguishing bribery from certain after-the-fact gratuities under a statute covering state, local and tribal officials; it did not eliminate federal congressional bribery offenses.

Critics argue that the decisions, collectively, make some forms of corrupt influence harder to regulate or prosecute. Defenders emphasize political-speech protections and the need for clear criminal prohibitions. The legal question in a particular prosecution still depends on the statute, evidence and required elements.

The claim that “Citizens United legalized the Navatek bribe” is especially misleading: the documented Navatek contribution was illegal despite the existence of Citizens United. The unproven question is whether any lawmaker also entered into a corrupt bargain.

Why Did the FBI Investigation Stop?

This is among the most consequential unresolved questions in the story.

ProPublica reported that FBI agents Michelle Ball and Kevin Gounaud and a Justice Department prosecutor examined Kao's allegations and supporting company records. They identified former Navatek executives and Integer Technologies as subjects of a developing bribery inquiry, considered additional investigative steps and scrutinized interactions with lawmakers.

The investigation was still developing when the federal public-corruption enforcement system underwent substantial changes after the January 2025 change in administration.

According to ProPublica, Ball was fired in October 2025, Gounaud was pushed out in early 2026, and the career prosecutor involved left the Justice Department amid restrictions and departures affecting the Public Integrity Section. The expanded Navatek investigation ceased to advance.

This is a reported chronology supported by interviews and investigative materials reviewed by ProPublica. It is not the same as a publicly released final DOJ memorandum explaining the exact reason each investigative lead was abandoned.

Was the case stopped for political reasons?

ProPublica attributed the end of the inquiry to the disruption of federal public-corruption units under the Trump administration. The timing and personnel departures are relevant, and the wider reorganization of those units is documented in independent reporting.

The FBI disputed elements of ProPublica's framing, saying an earlier inquiry found nothing implicating Collins or her campaign and defending personnel removals as actions concerning agents' conduct or performance. That response did not fully address the later phase of the investigation described in the new reporting.

An earlier inquiry that produced no charges and a later investigation that stopped before reaching a public charging decision are different events. Conversely, the later investigation's interruption does not establish that the lawmakers would have been charged or convicted.

Without the complete investigative record or a definitive government explanation, the precise contribution of personnel removals, evidence assessments, prosecutorial judgment and internal policy decisions to the case's termination remains incompletely established in public.

Was Martin Kao a credible witness?

Kao's criminal record and incentive to seek favorable treatment gave investigators serious reasons to test his claims. He had admitted fraud and hoped cooperation would benefit him. The court did not grant him a shorter fraud sentence based on that cooperation.

But credibility is evaluated against evidence, not decided solely by a person's criminal history. According to ProPublica, agents found emails and records consistent with parts of Kao's account. That strengthens corroborated details such as meetings, contributions and internal expectations; it does not automatically prove his account of what was privately promised by a particular lawmaker.

A complete case would need to assess both inculpatory and exculpatory evidence. It could end in charges, a documented decision not to prosecute, or unresolved findings. The public cannot responsibly substitute its preferred outcome for that missing record.

What Would Be Needed to Resolve the Remaining Questions?

Several concrete categories of evidence would make the case more answerable:

1. A transaction-level funding ledger. Match each requested congressional funding provision with the ultimate Navy obligation, contract recipient, modification and payment. This would clarify what Navatek, its university partners and successor businesses actually received.
2. Communications showing knowledge and intent. Establish precisely what each lawmaker, congressional staffer, campaign fundraiser, super PAC official and contractor executive knew, when they knew it and what they agreed to do.
3. The complete investigative disposition. Identify whether the expanded FBI matter was formally closed, suspended, transferred or left inactive, and what reasons were documented internally.
4. Contract-performance records. Compare research deliverables and government acceptance decisions with claims that projects had little practical value.
5. Separate treatment of each person and allegation. A finding about one donation, meeting or executive cannot be automatically generalized to every politician named in Kao's account.

These are not merely requests for another political statement. They are the records necessary to distinguish a provable criminal exchange from lawful advocacy, improperly sourced campaign money, failed research and unresolved allegations.

Frequently Asked Questions

Was Susan Collins charged with bribery over Navatek?

No. As of October 27, 2026, Collins has not been charged with bribery in the Navatek matter and has denied wrongdoing. The illegal $150,000 donation went to a super PAC supporting her, not to her personal account.

Was Navatek's $150,000 political donation illegal?

Yes. The government-contractor contribution and use of an intermediary name were addressed through Kao's criminal guilty plea and the FEC's civil settlement with PacMar Technologies.

What was the Society of Young Women Scientist and Engineers?

It was the name used in the campaign-finance disclosure for an LLC through which Navatek routed $150,000 to 1820 PAC. The unusual singular Scientist in the reported name helped trigger scrutiny. The FEC settlement established the intermediary's role in concealing the true contributor.

What happened to Martin Kao?

Kao pleaded guilty to federal campaign-finance crimes and was separately sentenced to 87 months in prison for COVID-relief fraud, money laundering and bank fraud. His fraud sentence was not a sentence for bribing members of Congress.

Did Navatek get $32 million for a $150,000 bribe?

That exact bargain is not established. An internal email reportedly described a $32 million funding commitment or expectation. The $150,000 unlawful contribution is documented, but the email alone does not prove that a $32 million contract was paid or that the contribution purchased it.

Were Lindsey Graham and James Clyburn part of the investigation?

FBI agents examined their interactions with Navatek, along with those of Joe Wilson, according to ProPublica. The lawmakers were not formally designated subjects of the expanded investigation at the stage described in the reporting. Representatives disputed the allegations of improper exchanges.

Did the FEC clear the Collins super PAC of all wrongdoing?

The FEC dismissed a specific allegation concerning 1820 PAC's failure to refund the contribution under a regulatory provision. That does not amount to a judicial finding about every person's knowledge, the earlier communications or the separate criminal bribery allegations.

Can government contractors donate to super PACs?

Generally no, when covered by the federal contractor prohibition. The FEC explains that super PACs may accept unlimited contributions from many eligible sources but not from federal government contractors. Employees and certain owners contributing their own personal money may be treated differently.

Did Citizens United legalize bribery?

No. Citizens United concerned independent political expenditures. Federal statutes still prohibit bribery, contributions in another person's name and covered government-contractor political contributions.

Why were no lawmakers charged?

The public record does not supply a complete answer. The expanded investigation reportedly stopped after major personnel and institutional changes, and the allegations also presented evidentiary challenges. No charges were filed against lawmakers; that fact alone does not establish either guilt or a fully completed examination of every claim.

What the Navatek Case Establishes — and What It Does Not

Navatek's illegal campaign-finance activity is not speculation. Federal criminal proceedings and an FEC settlement establish that the company funded a concealed $150,000 contribution to a pro-Collins super PAC while subject to the government-contractor prohibition.

ProPublica's subsequent investigations revealed evidence of extensive congressional relationships and serious allegations concerning how political fundraising and defense research funding interacted. They also revealed that a wider FBI bribery investigation did not reach a public charging determination against lawmakers before it stopped.

Those facts justify scrutiny. They do not justify declaring any uncharged lawmaker guilty of bribery.

The unresolved questions are specific: Who agreed to what, which funding decisions were actually influenced, where the federal money ultimately went, and what decision ended the expanded investigation? Answering them requires contracts, communications, financial records and an accountable investigative disposition — not simply another repetition of either the allegations or the denials.

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References and Further Reading

Primary Federal Records

• Federal Election Commission — MUR 7690: PacMar Technologies LLC. Complete public enforcement record, including procedural votes, the $325,000 civil penalty, the super PAC refund allegation and the failed 3-3 vote on separate direct-campaign contribution allegations.
• FEC — PacMar Technologies Conciliation Agreement (February 2025). Signed settlement documenting the December 26-27, 2019, $150,000 transfer, the applicable statutes and the company's acknowledgment of violations while disputing knowing-and-willful culpability.
• U.S. Department of Justice — Martin Kao Pleads Guilty to Unlawful Campaign Contributions (September 27, 2022). Establishes the criminal campaign-finance admission and the use of a shell company and reimbursed contributors.
• U.S. Department of Justice — Martin Kao Sentenced in COVID-Relief and Bank Fraud Case (February 13, 2025). Establishes the 87-month sentence and restitution in a separate fraud prosecution.
• Campaign Legal Center — Original Complaint Concerning the Society LLC (February 3, 2020). Documents how the suspicious contribution was challenged before the full enforcement record became public.

Federal Law and Supreme Court Decisions

• FEC — Federal Government Contractors. Official guidance explaining the contractor contribution prohibition, timing and exceptions.
• FEC — Contributions to Super PACs and Hybrid PACs. Clarifies why super PACs may accept unlimited contributions from eligible donors but not federal contractors.
• 18 U.S.C. § 201 — Bribery of Public Officials and Witnesses. Relevant federal bribery statute and definition of official acts.
• McCormick v. United States (1991), Citizens United v. FEC (2010), McDonnell v. United States (2016) and Snyder v. United States (2024). Distinct rulings relevant to campaign finance, quid pro quo, official acts and the distinction between bribery and certain gratuities.

Original Investigative Reporting

• ProPublica — The FBI Anti-Corruption Squad Was Circling Susan Collins — Until Trump Got in the Way (September 22, 2026). Original reporting on Collins, 1820 PAC, Kao's allegations, company correspondence and the wider FBI inquiry.
• ProPublica — Susan Collins Dismissed Our Reporting as Old News. Some of Her Claims Aren't True (September 23, 2026). Examines the difference between the earlier criminal investigation and the later inquiry prompted by Kao's cooperation.
• ProPublica — How Trump's FBI Purge Saved Lindsey Graham and James Clyburn From a Bribery Investigation (October 20, 2026). Original reporting on the South Carolina funding trail, meetings and FBI scrutiny of other lawmakers.
• U.S. House History, Art and Archives — Lindsey O. Graham. Official congressional biographical record confirming Graham's service and July 11, 2026, death.

Editorial currency note: This article reflects records and reporting available as of October 29, 2026. Additional investigative disclosures, enforcement actions, court filings or released procurement records could alter the status of individual claims. Where FBI materials are described through ProPublica's reporting rather than documents independently obtained by sherafy.com, that sourcing distinction is preserved.