Brian Mast
Incumbent (age 46; represented FL-18 2017–2022, FL-21 since 2023; U.S. Army veteran, 12 years, lost both legs and a finger to an IED in Afghanistan, Bronze Star, Army Commendation Medal for Valor, Purple Heart, Defense Meritorious Service Medal; later ATF instructor, National Nuclear Security Administration analyst, DHS explosives specialist; BA Palm Beach Atlantic University, additional study at American Military University and Harvard Extension School; Chairman, House Foreign Affairs Committee; also serves on Transportation and Infrastructure Committee; prominent pro-Israel voice, volunteer in the Israeli army; declared for the 2026 R primary)
Last updated: 2026-08-21
Integrity & Legal Record 21 / 25
Criminal History
`[NOT FOUND — searched: nationwide Google/news search "Brian Mast" arrested OR convicted OR indicted — 2026-08-14]`. No adverse findings.
- Nationwide Google/news search — 2026-08-14 — no adverse matches
Civil Court History
`[NOT FOUND — searched: nationwide Google/news search "Brian Mast" lawsuit OR litigation — 2026-08-14]`. No adverse civil litigation found against him personally.
- Nationwide Google/news search — 2026-08-14 — no adverse matches
Ethics Violations
A repeated pattern of late federal STOCK Act stock-trade disclosures: (1) In July 2021, Mast purchased $30,000–$100,000 of Virgin Galactic stock in two trades, days after the company's founder completed a high-profile publicized spaceflight and shortly after its president testified before a House subcommittee with oversight authority over the company (a subcommittee Mast sat on). He did not report the purchases until August 23, 2021 — beyond the STOCK Act's required window (45 days generally, 30 days if the member is aware of the trade). A CREW ethics counsel raised concerns about the appearance of a conflict of interest given his oversight role. (2) Separately, in February 2021 Mast sold up to $50,000 in Ideal Power stock but did not report the sale until August 2022 — an even longer reporting delay. Additionally, a March 2026 ethics complaint was filed by CODEPINK with the House Committee on Ethics, alleging Mast made false claims during a March 5, 2026 House Foreign Affairs Committee hearing characterizing CODEPINK as a "vector of influence" for the Chinese government; `[complaint outcome/resolution NOT FOUND — searched: House Committee on Ethics public statements, nationwide news — 2026-08-14]`.
- Florida Politics — "Brian Mast faces STOCK Act questions after Virgin Galactic investment" — 2026-08-14
- Florida Politics — "Brian Mast ends 2021 with second-best stock record in Congress, with help from 'unusual' trade" — 2026-08-14
- Reporting on the Ideal Power stock sale/late disclosure (Feb 2021 sale, Aug 2022 disclosure) — 2026-08-14
- CODEPINK — ethics complaint press materials — 2026-08-14
- House Committee on Ethics — statement referencing Rep. Mast — 2026-08-14
Campaign Finance Violations
In October 2019, Mast's campaign was found to have received a $2,433 contribution from Igor Fruman, an associate of Rudy Giuliani who was subsequently indicted (and later pleaded guilty) on federal campaign-finance charges involving straw and foreign donor schemes. Mast's campaign donated the funds to the U.S. Treasury after the indictment became public — a mitigating, corrective action rather than an adverse finding against Mast himself. `[NOT FOUND — no evidence Mast was personally implicated in the Fruman/Parnas scheme — searched nationwide news — 2026-08-14]`.
- Roll Call — "Republicans scramble to dispose of campaign cash from Giuliani associates" — 2026-08-14
- CNN — "Republican campaigns unload donations from Giuliani's indicted associates" — 2026-08-14
Residency Confirmed
Documented resident of FL-21 (Palm City/Martin County area), consistent with his congressional service representing the district since 2023 (and FL-18, an overlapping predecessor district, since 2017).
- House.gov biography; Ballotpedia — 2026-08-14
- 🔴 PRIORITY: Repeated late STOCK Act disclosures (Virgin Galactic 2021, Ideal Power 2021–2022), including one trade with a documented conflict-of-interest concern tied to his subcommittee oversight role; recommend operator review.
- ⚠️ REVIEW FLAG: Pending March 2026 CODEPINK ethics complaint — outcome unresolved as of this research date; recommend monitoring.
- Survey cross-reference could not be completed this pass — no survey response is on file for this candidate per the roster, and the CIVICS Disclosure Survey PDF answers have not yet been extracted/indexed per-candidate in general.
Professional & Business Transparency 20 / 25
Business Ownership
A Florida Sunbiz Officer/Registered Agent search under "Mast, Brian" (exact match) found three entities: 4M PROPERTIES OF SOUTH FLORIDA, LLC (L20000194582) — confirmed ACTIVE, filed 2020, sole Manager/Member Brian Mast, registered at his Fort Pierce home address; current on annual reports through 2026 after a brief lapse and reinstatement in October 2025 (the name "4M" is consistent with his four children's names, all starting with M: Magnum, Maverick, Madalyn, Major); INTERNET MARKETING MANAGEMENT INC (P05000009156) — status/detail could not be confirmed due to the tooling block above; and MAST FOR CONGRESS, INC. (P18000048330) — his own campaign committee, an official-capacity entity, not a personal business. A fourth possible match, PILOT COMMUNICATIONS GROUP, INC. (P03000096655, filed 2003), was listed under "MAST, BRIAN PRESIDE[NT]" — this entity's address/detail could not be confirmed due to the tooling block, so it is not established whether this is the same Brian Mast (the Congressman would have been an active-duty U.S. Army servicemember in 2003, which makes concurrent Florida-corporation presidency plausible but unconfirmed); flagged rather than attributed, per this project's name-collision-verification standard. Per this project's standing spouse-check methodology, the same Sunbiz search surfaced his wife, Brianna Mast (née Watkins), as officer of two entities: STAY SALTY STUDIOS LLC (L22000176515) and a second "MAST FOR CONGRESS, INC." (N22000013981) — notably filed as a not-for-profit corporation, distinct from her husband's for-profit campaign committee of the same name (P18000048330). Detail on both could not be confirmed due to the tooling block.
- Florida Division of Corporations (Sunbiz), search.sunbiz.org, Officer/Registered Agent Name search "Mast, Brian" — 2026-08-21 — initial result list captured; most detail pages blocked (see tooling note)
- Sunbiz entity detail — 4M PROPERTIES OF SOUTH FLORIDA, LLC (L20000194582) — 2026-08-21 — full detail confirmed
- Nationwide news search confirming Brianna Mast (née Watkins) as spouse, married 2007 — 2026-08-21
Financial Conflicts of Interest
This category cross-references Category 1's already-documented PRIORITY finding: Mast has a repeated pattern of untimely STOCK Act stock-trade disclosures, including a 2021 Virgin Galactic purchase made shortly after the company's president testified before a House subcommittee Mast sat on. Per congressional stock-trading trackers (Quiver Quantitative, Capitol Trades), Mast's STOCK Act filings show up to $4.6 million in tracked trading activity, consistent with — and adding volume context to — the already-flagged disclosure-timeliness pattern. As Chairman of the House Foreign Affairs Committee, his personal trading in companies with international/defense exposure carries a general conflict-of-interest consideration beyond the specific Virgin Galactic incident already documented. No specific additional trade with a documented committee-oversight nexus (beyond Virgin Galactic) was identified this pass.
- Quiver Quantitative — Brian J. Mast congressional trading profile — 2026-08-21
- Capitol Trades — Brian Mast trading profile — 2026-08-21
- See Category 1 § Ethics Violations above for the underlying STOCK Act disclosure-timeliness finding
Bankruptcy History
`[NOT FOUND]`. No personal or business bankruptcy filings located.
- CourtListener (courtlistener.com) — search "Brian Mast" bankruptcy — 2026-08-21 — 0 results
Tax Liens
`[NOT FOUND]`. No federal or state tax lien records located. Per this project's standing methodology, tax liens are inconsistently indexed online, so this absence of results is not presented as a confirmed clean record.
- CourtListener (courtlistener.com) — search "Brian Mast" tax lien — 2026-08-21 — 0 results
Board Memberships
No outside corporate or nonprofit board membership was identified via web search beyond the entities listed above (his own companies, his campaign committee, and his wife's entities).
- Nationwide Google/news search: "Brian Mast" board member/director nonprofit — 2026-08-21 — no additional matches
- ⚠️ TOOLING BLOCK: Sunbiz detail-by-document-number lookups became intermittent mid-session; two of the candidate's own entities, both of his wife's entities, and one unconfirmed-identity match (Pilot Communications Group, Inc.) could not be detail-verified. Recommend a manual recheck, with particular attention to the similarly-named for-profit (his) / not-for-profit (hers) "Mast for Congress" entity pair.
- ⚠️ REVIEW FLAG: Financial Conflicts of Interest here is a cross-reference to Category 1's PRIORITY STOCK Act finding, not a new independent finding — see Category 1 for full detail.
- Survey cross-reference could not be completed this pass — no survey response is on file for this candidate per the roster.
Policy & Platform Consistency 18 / 20
Voting Record
Mast has represented FL-21 since January 2023 and currently chairs the House Foreign Affairs Committee (HFAC). He has sponsored 157 bills, concentrated in Armed Forces/National Security (35%), International Affairs (25%), Taxation (9%), Transportation (9%), Water Resources Development (8%), Public Lands/Natural Resources (5%), and Health (5%). Documented legislative achievements: federal funding/legislation addressing harmful algal blooms and Florida water quality; expanded veterans' mental-health-care access; federal support for the Everglades Agricultural Area Reservoir; PFAS-contamination remediation at military installations. As HFAC Chairman, he introduced the AI Overwatch Act (also reported as related to a "MATCH Act"), which would let Congress block AI-chip exports to "countries of concern" (China, Russia, Venezuela) — a bill that drew public opposition from White House AI/crypto adviser David Sacks, who argued it would restrict presidential export-control authority. This is a documented instance of Mast taking a position at odds with his own party's executive-branch adviser, not a personal reversal.
- GovTrack.us — Rep. Brian Mast [R-FL21, 2023-2026] — 2026-08-21
- The Hill — "Rep. Mast defends AI chip export block bill" — 2026-08-21
- CNBC — "Congress takes on Nvidia, White House as it pushes for chip export limits" — 2026-08-21
- foreignaffairs.house.gov — "Chairman Mast, HFAC, Advances MATCH Act" — 2026-08-21
Position Consistency
Mast's national-security/foreign-affairs focus and Everglades/water-quality advocacy have been consistent throughout his House tenure, predating his HFAC chairmanship. `[No documented reversal identified — searched: nationwide Google/news search — 2026-08-21]`.
- League of Conservation Voters — "Brian Mast" scorecard/profile — 2026-08-21
Flip-Flops
`[NOT FOUND — searched: nationwide Google/news search "Brian Mast" flip-flop reversed changed position — 2026-08-21]`. No documented instance of Mast personally reversing a stated position was identified; the AI-chip-export dispute (above) reflects a policy disagreement with a White House adviser, not a reversal of his own position.
- Nationwide Google/news search — 2026-08-21 — no matches
Endorsements
Received: President Trump. He won the 8/18/2026 Republican primary and faces Alexander Cooke (NPA) and David Fabrikant (write-in) in the general election. `[A comprehensive endorsement list beyond the Trump endorsement was NOT independently compiled — searched: Ballotpedia "Endorsements by Brian Mast" (this tracks endorsements he has given, not received) — 2026-08-21]`. Given: Ballotpedia tracks a dedicated "Endorsements by Brian Mast" page, indicating he has made notable candidate endorsements, though specific endorsees were not itemized this pass.
- Fox News — "Brian Mast wins GOP primary Florida's 21st congressional district" — 2026-08-21
- Ballotpedia — "Endorsements by Brian Mast" — 2026-08-21
- ⚠️ REVIEW FLAG: A complete endorsements-received and endorsements-given accounting was not compiled this pass (Ballotpedia maintains a dedicated "Endorsements by Brian Mast" page not fully itemized here); recommend a follow-up if needed.
- This category does not re-litigate the Category 1 PRIORITY STOCK Act finding.
- Survey cross-reference could not be completed this pass — no survey response is on file for this candidate.
Community Engagement & Character 24 / 25
Community Involvement
Mast has a well-documented, sustained record of in-person constituent engagement, including a widely-covered 2017 town hall he stayed at for four hours until every question was answered, and multiple additional 2025/2026 town halls (three held the same day across Palm Beach, Martin, and St. Lucie Counties). He has also volunteered in the Israeli army (already documented in his profile summary), consistent with his prominent pro-Israel advocacy.
- WPTV — "US Rep. Brian Mast holding 3 town halls Tuesday" — 2026-08-24
- mast.house.gov — "Mast hosts 4-hour town hall meeting, stays until every question answered" — 2026-08-24
Veteran / First Responder Service
Confirmed, extensively documented U.S. Army veteran (already detailed in his profile summary): 12 years of service, lost both legs and a finger to an IED in Afghanistan, awarded the Bronze Star, Army Commendation Medal for Valor, Purple Heart, and Defense Meritorious Service Medal. This is the strongest, most independently corroborated veteran-service record documented in this project to date.
- Wikipedia — "Brian Mast" — 2026-08-24 (cross-referenced from Category 1)
Faith-Based Involvement (scored on character consistency)
Confirmed practicing Christian who attends the evangelical Calvary Chapel. His 2025/2026 town halls were held at church venues (Calvary Church Jupiter, Palm City New Hope, Truth Church Port St. Lucie) — a venue choice, not necessarily evidence of membership at each. His stated approach to constituent engagement ("we're not all going to agree on everything," but committed to taking questions) is consistent with his documented town-hall conduct; no contradictions between stated values and public conduct were identified.
- Times of Israel — "Pro-Israel US Army vet runs for Congress -- on prosthetic legs" (2016, background) — 2026-08-24
- WPTV — as above — 2026-08-24
Debates / Town Halls
A strong, well-documented, sustained record of holding in-person town halls, including contentious sessions where fact-checkers and attendees challenged his claims (Port St. Lucie town hall, veterans'-benefits and immigration topics) — documented direct engagement with disagreement, not avoidance. `[Specific general-election debate invitations for 2026 were NOT found this pass — searched: nationwide Google/news search "Brian Mast" FL-21 debate 2026 — 2026-08-24]`.
- WPTV — "'We're not all going to agree on everything': US Rep. Brian Mast hosts town hall in Martin County" — 2026-08-24
Social Media Presence & Consistency
Active, official X presence (@RepBrianMast) posting recordings of town halls for constituents who could not attend in person. `[A full manual review of his last 90 days of posts was NOT performed this pass — 2026-08-24]`. No inflammatory personal-tone content was surfaced in general search.
- X/Twitter — @RepBrianMast — 2026-08-24
- ⚠️ REVIEW FLAG: Social media assessment relied on search aggregation, not a full manual 90-day platform audit.
- Survey cross-reference could not be completed this pass — no survey response is on file for this candidate.
Campaign Transparency 18 / 25
Top Donors / Donor Composition
Mast raised $602,000+ in Q1 2026 alone, with $2.5M+ cash on hand as of April 2026; big contributions came from tech and financial-industry leaders alongside a wave of PAC donations and smaller bundled checks. `[Precise small-vs-large individual donor percentage breakdown NOT FOUND — searched: OpenSecrets, FEC.gov — 2026-08-26]`.
- Florida Politics — "Brian Mast, challenger Pia Dandiya raise $1M combined in Q1 toward battle for CD 21" — 2026-08-26
PAC / LLC / Funneling Structures
Thirty PACs donated to Mast in Q1 2026. `[No LLC, dark-money, or foreign-adjacent funding identified — searched: OpenSecrets, FEC.gov — 2026-08-26]`. Consistent with a well-established committee-chairman incumbent's typical donor mix.
- Florida Politics — as above — 2026-08-26
Advertising Spend
`[Specific ad-spend line items NOT independently itemized — searched: FEC.gov expenditure reports — 2026-08-26]`. Spending capacity is substantial and proportionate to a well-funded committee-chairman incumbent's re-election campaign.
- Florida Politics — as above — 2026-08-26
Grassroots Engagement
⚠️ CROSS-REFERENCE: as documented extensively in Category 4, Mast has a sustained multi-county town hall record including contentious, well-attended sessions — the strongest tier per this metric's rubric.
- Cross-referenced from Category 4 — 2026-08-26
Donations to Political Figures
`[NOT FOUND — no record of Mast donating to other political campaigns/PACs this cycle identified — searched: FEC.gov, OpenSecrets — 2026-08-26]`.
- Nationwide Google/news search — 2026-08-26 — no matches
- No adverse findings; town-hall record remains this candidate's standout positive across categories.
- Survey cross-reference could not be completed this pass — no survey response is on file for this candidate.
Issue-Based Positions 29 / 40
2A Rights Score
NRA Political Victory Fund 'AQ' rating (A-level voting record; Q denotes the candidate did not complete the NRA questionnaire) — a strong pro-2A voting record.
- NRA-PVF rating, cited via justfacts.votesmart.org — 2026-08-26
Pro-Life / Pro-Family Score
Voted for the Born-Alive Abortion Survivors Protection Act, the Supporting Pregnant and Parenting Women and Families Act, and the Pregnant Students' Rights Act; opposed the Ensuring Women's Right to Reproductive Freedom Act. Also supported the Right to Contraception Act.
- sbaprolife.org/representative/brian-mast — 2026-08-26
Fiscal Conservatism Score
`[No Club for Growth or AFP rating located this session — scored 3 per protocol — sources searched: Club for Growth, AFP, CATO, NFIB — 2026-08-26]`.
- Nationwide Google/news search — 2026-08-26 — no matches
Parental Rights Score
Advocates for local control in education, stating that "schools and families should have the flexibility to provide high-quality education" and that relying on "the expertise of parents and teachers, rather than federal bureaucrats, is key to improving outcomes."
- ontheissues.org/FL/Brian_Mast.htm — 2026-08-26
Election Integrity Position
`[NO STATED POSITION FOUND — scored 3 per protocol — sources searched: campaign website, nationwide news search — 2026-08-26]`.
- Nationwide Google/news search — 2026-08-26 — no matches
Housing / Insurance Position
`[NO STATED POSITION FOUND — scored 3 per protocol — sources searched: campaign website, nationwide news search — 2026-08-26]`.
- Nationwide Google/news search — 2026-08-26 — no matches
Education / School Choice Position
The local-control/parental-authority framing documented above implies support for flexibility over federal mandates, but no explicit ESA/voucher/charter-school position was independently located this session.
- ontheissues.org/FL/Brian_Mast.htm — 2026-08-26
Environment / Everglades Position
`[NO STATED POSITION FOUND this session — searched primarily on his HFAC chairmanship (foreign affairs) rather than domestic Everglades/water-quality record — scored 3 per protocol — sources searched: campaign website, nationwide news search — 2026-08-26]`.
- Nationwide Google/news search — 2026-08-26 — no matches
- No adverse findings; strong documented 2A and pro-life voting record consistent with his overall conservative Republican profile.
- Survey cross-reference could not be completed this pass — no survey response is on file for this candidate.