RepublicanIn office since Jan 2017

Brian Mast

U.S. Representative, FL-21 since 2017. Re-elected in 2026. Next on the ballot in 2028.

U.S. Representative, FL-21Born 1980Analyst

Official website Wikipedia Congress.gov FEC filings

In office: 9 yrs; Since 2017
Bills became law: 1; 42 sponsored, 119th Congress
Votes missed: 3.0%; Chamber median 2.1%
With party: 98%; On votes splitting the parties
Last margin: +9.1; Won 2026
Next election: 2028; Nov 7, 2028

Source: Wikidata, congress-legislators and Open States; 99chambers legislative recordsUpdated Nov 7, 2026, 3:00 PM ET

Committees

119th Congress.

House Committee on Transportation and InfrastructureAviationCoast Guard and Maritime TransportationWater Resources and Environment
House Committee on Foreign Affairs · Chair

Source: congress-legislators committeesUpdated Nov 7, 2026, 3:00 PM ET

Legislation

119th Congress · 42 sponsored · 1 became law

BillIntroCmteHouseSenateLaw

HR 3497 Medal of Sacrifice Act
Crime and Law Enforcement · Became law May 2026

HR 2334 Servicemember Residence Protection Act
Armed Forces and National Security · Passed House Sep 2025

HR 10890 To amend the Internal Revenue Code of 1986 to establish the motor fuel deduction.
Introduced Oct 2026

HR 10889 GAS Act of 2026
Introduced Oct 2026

HR 10279 To designate the facility of the United States Postal Service located at 9995 Southeast Federal Highway in…
Government Operations and Politics · Introduced Sep 2026

Source: Congress.gov billsUpdated Nov 6, 2026, 3:27 PM ET

Voting record

119th Congress · placement by roll-call votes

Where Mast sits in the U.S. House

Mast is closer to the center than 53% of the chamber's Republicans.

Closest: Laurel Lee, Guy Reschenthaler, Michael Guest

Source: 99chambers roll-call scalingUpdated Nov 6, 2026, 5:06 PM ET

With Mast’s party

Votes with the chamber's Republicans98%
Cosponsorships of the other party's bills23%

Black tick: the average of Republicans in the U.S. House.

Source: 99chambers legislative scores from roll calls and cosponsorships

Key votes

Votes chosen for their effect, not their side: Mast’s vote, each party’s majority, and the result. An orange vote differs from most Republicans.

Date	Bill	Mast	Rep. majority	Dem. majority	Result
Sep 16, 2026	HR 5334: Lindsey O. Graham Sanctioning Russia and Iran Act of 2026	Yes	Yes	No	Passed 262–159
Jun 30, 2026	HCONRES 108: Directing the President pursuant to section 5(c) of the War Powers Resolution to…	No	No	Yes	Failed 189–235
Jun 9, 2026	S 2: Secure America Act	Yes	Yes	No	Passed 214–212
May 13, 2026	HR 1346: To amend the Clean Air Act with respect to the ethanol waiver for Reid Vapor Pressure…	Yes	Yes	No	Passed 218–203
Feb 12, 2026	HR 2189: To modernize Federal firearms laws to account for advancements in technology and…	Yes	Yes	No	Passed 233–185

Source: 99chambers key votes from Congress.gov, Voteview and Open States roll calls

Career

Offices held, and every time Mast was on a ballot. Filled marks are general elections won; hollow marks are primaries; an orange outline is a loss.

20162017201820192020202120222023202420252026202720282029U.S. House, FL-18 U.S. House, FL-21

Source: 99chambers results archive (MEDSL, Klarner, state election offices)

Elections

Margin against the seat’s presidential baseline: how the seat voted for president in the same or nearest year.

Year	Race	Result	Margin	Seat	+/−
2026	Florida's 21st District	Won	R+9.1	R+16.4	−7.3
2024	U.S. House, FL-21	Won	R+23.6	—	—
2022	U.S. House, FL-21	Won	R+27.0	—	—
2020	U.S. House, FL-18	Won	R+14.8	—	—
2018	U.S. House, FL-18	Won	R+8.6	—	—
2016	U.S. House, FL-18	Won	R+10.5	—	—