Representative · Florida's 21st district

Brian J. Mast

Brian J. Mast is a Republican representative for Florida's 21st district, in Congress since 2017. In the 119th Congress, 675 roll calls were held while they served; they missed 19, and cast 454 of 463 party-unity votes with the majority of their caucus.

Party
Republican
Chamber
House
Current
In Congress since
Jan 3, 2017
Term ends
Jan 3, 2027
Open in the Congress explorerOfficial recordAlert me
Photo: Government Publishing Office (public domain)

Record by Congress

Counts with their denominators for each Congress and chamber served. Ranks are among members who served most of that Congress (100 or more roll calls): rank 1 did it most often. A description, not a grade.

CongressRoll callsMissedVotes with partySponsoredCosponsored across the aisle
119th CongressHouse of Representatives6752.8%19 of 675 · rank 143 of 43998%454 of 463 · rank 239 of 439441 became law23%21 of 92
118th CongressHouse of Representatives1,2223.0%37 of 1,222 · rank 173 of 44297%798 of 824 · rank 238 of 442321 became law16%33 of 212
117th CongressHouse of Representatives9972.7%27 of 997 · rank 86 of 44395%531 of 557 · rank 349 of 443320 became law21%77 of 366

Ideology (DW-NOMINATE)

Voteview's DW-NOMINATE first dimension estimates where members sit from all their roll calls: liberal (−1) to conservative (+1). It describes voting patterns, not views. Shown for the 119th Congress (House), with each party's median and the chamber's range.

Liberal −1+0.46+1 Conservative

Source: Lewis, Jeffrey B., Keith Poole, Howard Rosenthal, Adam Boche, Aaron Rudkin, and Luke Sonnet (2026). Voteview: Congressional Roll-Call Votes Database. https://voteview.com/

Votes against their party

The latest party-unity votes on bills and amendments where the member voted yea or nay against most of their caucus.

  1. H.R. 8800: National Defense Authorization Act for Fiscal Year 2027Yea
    Jul 21, 2026· House· Amendments· On Agreeing to the Amendment· Agreed to 265–161· Against party
  2. H.R. 7567: Farm, Food, and National Security Act of 2026Nay
    Apr 30, 2026· House· Amendments· On Agreeing to the Amendment· Failed 187–239· Against party
  3. H.R. 7567: Farm, Food, and National Security Act of 2026Yea
    Apr 30, 2026· House· Amendments· On Agreeing to the Amendment· Agreed to 280–142· Against party
  4. H.R. 7148: Consolidated Appropriations Act, 2026Nay
    Jan 22, 2026· House· Amendments· On Agreeing to the Amendment· Failed 164–268· Against party
  5. H.R. 7006: Financial Services and General Government and National Security, Department of State, and Related Programs Appropriations Act, 2026Nay
    Jan 14, 2026· House· Amendments· On Agreeing to the Amendment· Failed 127–291· Against party
  6. H.R. 4553: Energy and Water Development and Related Agencies Appropriations Act, 2026Nay
    Sep 4, 2025· House· Amendments· On Agreeing to the Amendment· Failed 127–297· Against party
  7. H.R. 4553: Energy and Water Development and Related Agencies Appropriations Act, 2026Nay
    Sep 3, 2025· House· Amendments· On Agreeing to the Amendment· Failed 120–307· Against party
  8. H.R. 4553: Energy and Water Development and Related Agencies Appropriations Act, 2026Nay
    Sep 3, 2025· House· Amendments· On Agreeing to the Amendment· Failed 127–299· Against party

Recent votes

The latest roll calls on bills and amendments, with the member's recorded position.

  1. S. 2403: Retire through Ownership ActYea
    Sep 16, 2026· House· Passage· On Motion to Suspend the Rules and Pass· Passed 401–14
  2. H.R. 9497: Water Resources Development Act of 2026Yea
    Sep 16, 2026· House· Passage· On Motion to Suspend the Rules and Pass, as Amended· Passed 415–9
  3. H.R. 9340: Ratepayer Protection ActYea
    Sep 16, 2026· House· Passage· On Motion to Suspend the Rules and Pass, as Amended· Passed 417–3
  4. H.J.Res. 213: Providing for congressional disapproval under chapter 8 of title 5, United States Code, of the rule issued by the Environmental Protection Agency relating to the "California State Nonroad Engine Pollution Control Standards; Commercial Harbor Craft Regulations; Notice of Decision".Yea
    Sep 16, 2026· House· Passage· On Passage· Passed 214–208
  5. H.R. 10326: PROOF ActYea
    Sep 16, 2026· House· Passage· On Passage· Passed 217–207
  6. H.R. 9576: National Fraud Enforcement Division Act of 2026Yea
    Sep 16, 2026· House· Passage· On Passage· Passed 352–72
  7. H.R. 5334: Lindsey O. Graham Sanctioning Russia and Iran Act of 2026Yea
    Sep 16, 2026· House· Passage· On Motion to Concur in the Senate Amendments· Passed 262–159
  8. H.Con.Res. 93: Directing the President, pursuant to section 5(c) of the War Powers Resolution, to remove United States Armed Forces from hostilities with Iran.Nay
    Sep 15, 2026· House· Passage· On Agreeing to the Resolution· Passed 220–204
  9. H.J.Res. 210: Providing for congressional disapproval under chapter 8 of title 5, United States Code, of the rule submitted by the Environmental Protection Agency relating to "California State Nonroad Engine Pollution Control Standards; Ocean-Going Vessels At-Berth; Notice of Decision".Yea
    Sep 15, 2026· House· Passage· On Passage· Passed 216–211
  10. H.R. 9500: Tax Relief for Fraud Victims ActYea
    Sep 15, 2026· House· Passage· On Motion to Suspend the Rules and Pass, as Amended· Passed 408–17
  11. H.R. 2140: Diesel Emissions Reduction Act of 2025Yea
    Sep 15, 2026· House· Passage· On Motion to Suspend the Rules and Pass· Passed 343–79
  12. H.R. 4646: Whistleblower Protection Act of 2025Yea
    Sep 15, 2026· House· Passage· On Motion to Suspend the Rules and Pass, as Amended· Passed 424–0

Sponsored bills

Bills and resolutions the member introduced as sponsor in the loaded Congresses. Volume is not quality: most measures never leave committee.

108 sponsored · 2 became law

How far they got

  1. Introduced9992%
  2. Reported by committee10.9%
  3. Passed one chamber54.6%
  4. Passed both chambers10.9%
  5. Became law21.9%

Policy areas

  1. Armed Forces and National Security30
  2. International Affairs21
  3. Water Resources Development9
  4. Congress8
  5. Transportation and Public Works8
  6. Taxation7
  7. Environmental Protection5
  8. Health5

Latest activity

  1. H.Res. 1524 Expressing support for the designation of the week of September 19 through September 26, 2026, as "National Estuaries Week".
    Introduced· Environmental Protection· Sep 10, 2026
  2. H.R. 10279 To designate the facility of the United States Postal Service located at 9995 Southeast Federal Highway in Hobe Sound, Florida, as the "Special Operations Chief Petty Officer Aaron Carson Vaughn Post Office Building".
    Introduced· Government Operations and Politics· Sep 3, 2026
  3. H.R. 10099 Freedom Haulers Act
    Introduced· Transportation and Public Works· Aug 13, 2026
  4. H.R. 9788 FORMULA Act of 2026
    Introduced· Health· Jul 20, 2026
  5. H.R. 9087 To direct the Secretary of State to take actions with respect to certain foreign affairs matters.
    Introduced· International Affairs· Jun 2, 2026
  6. H.R. 3497 Medal of Sacrifice Act
    Became law· Crime and Law Enforcement· May 28, 2026
  7. H.R. 8661 Foreign Military Financing Loan Authorization Act of 2026
    Introduced· International Affairs· May 13, 2026
  8. H.R. 8519 To require the Administrator of the Environmental Protection Agency to waive Reid Vapor Pressure requirements with respect to calendar year 2026, and for other purposes.
    Introduced· Environmental Protection· Apr 27, 2026

Committees

Seats as published by the congress-legislators project. Past seats are those no longer listed since Analisa began recording them.

Current seats

Federal contracts in the district

Contract obligations attributed to Florida's 21st district by each action's county and its award's ZIP code (land shares through census tracts); an estimate where ZIP codes cross district lines. Shown next to the member's record: neither explains the other.

Obligations · FY2026
$547.2M
Per resident
$676
Rank in Florida
11 of 28
Contract actions
7,425
New awards: 6,186

By fiscal year

  1. 292.9MFY2017
  2. 305.8MFY2018
  3. 304.3MFY2019
  4. 281.1MFY2020
  5. 360.4MFY2021
  6. 275.6MFY2022
  7. 314.6MFY2023
  8. 459.3MFY2024
  9. 256.5MFY2025
  10. 547.2MFY2026

Top buyers

  1. Department of the Army$335.2M61%
    Department of Defense
  2. Department of Veterans Affairs$140.1M26%
  3. Defense Logistics Agency$13.8M2.5%
    Department of Defense
  4. National Aeronautics and Space Administration$10.5M1.9%
  5. Agricultural Marketing Service$7.9M1.5%
    Department of Agriculture
  6. Department of the Air Force$7.7M1.4%
    Department of Defense
  7. Federal Bureau of Investigation$6.9M1.3%
    Department of Justice
  8. U.S. Immigration and Customs Enforcement$5.3M1.0%
    Department of Homeland Security

Top recipients

  1. THALLE CONSTRUCTION CO INC$250.5M46%
    1 award
  2. DOCUMENT STORAGE SYSTEMS, INC.$60.9M11%
    23 awards
  3. FORGEN-ODIN JV$24.4M4.5%
    1 award
  4. VALOR HEALTHCARE INC$23.2M4.2%
    1 award
  5. KIEWIT INFRASTRUCTURE SOUTH CO$22.6M4.1%
    1 award
  6. MANSON CONSTRUCTION CO$16.8M3.1%
    2 awards
  7. VENERGY GROUP LLC$14.3M2.6%
    20 awards
  8. GREAT LAKES DREDGE & DOCK CO, LLC$12.7M2.3%
    2 awards
  9. AEROJET ROCKETDYNE, INC.$10.4M1.9%
    1 award
  10. SKYLINE ELEVATOR WORKS, INC$10.1M1.9%
    1 award
Open the district page

Campaign money

What the member's campaigns reported receiving, per FEC two-year cycle, and the federal contracts of the organizations that sponsor the giving PACs (each sponsor matched to a contract recipient by AI, with its probability). Comparisons of public records: neither explains the other.

2026 cycle

Raised
$4.3M
through Jul 29, 2026
Cash on hand
$2.9M
From committees
$378.9K
114 committees
From contractor PACs
$130.5K
38 PACs · 34% of committee money
IndividualsPACsPartySelf

Largest gifts from PACs of federal contractors, 2026

PAC sponsorGivenMatched contract recipientIts contracts, FY2026
chevron corporationchevron employees political action committee - chevron corporation$10KCHEVRON U.S.A. INCAI match · 100% · of one corporate family$713.4K
rtx corporationemployees of rtx corporation political action committee$10KRTX CORPORATIONAI match · 100% · the same organization$3.9B
general atomicsgeneral atomics political action committee$10KGENERAL ATOMICSAI match · 95% · the same organization—
microsoft corporationmicrosoft corporation stakeholders voluntary pac - msvpac$10KMICROSOFT CORPORATIONAI match · 99% · the same organization$444.3M
american bankers association (aba)american bankers association pac (bankpac)$7,500AMERICAN BANKERS ASSOCIATIONAI match · 100% · the same organization—
general electric companygeneral electric company aerospace employee political action committee (ge aerospace pac)$7,500GENERAL ELECTRIC COMPANYAI match · 98% · the same organization$636.3M
parsons corporationparsons corporation political action committee$7,000PARSONS GOVERNMENT SERVICES INC.AI match · 100% · of one corporate family$748M
leidos, inc.leidos inc. political action committee$6,000LEIDOS, INC.AI match · 99% · the same organization$1.1B
american institute of certified public accountantsamerican institute of certified public accountants political action committee$5,000AMERICAN INSTITUTE OF CERTIFIED PUBLIC ACCOUNTANTSAI match · 100% · the same organization—
delta airlinesdelta air lines pac$5,000DELTA AIR LINES, INC.AI match · 100% · the same organization$8.9M

By cycle

CycleRaised (FEC summary)From committeesFrom contractor PACs
2026$4.3M$378.9K$130.5K38 PACs · 34% of committee money
2024$4M$319.9K$60K17 PACs · 19% of committee money
2022$6.3M$276.9K$37.5K12 PACs · 14% of committee money

Raised is the FEC's cumulative summary of the candidacy; committee money counts each contribution reported, so the two cover slightly different dates.

Terms

Every term in the House or Senate, as published by the congress-legislators project.

  1. House · Florida's 21st districtJan 3, 2025 – Jan 3, 2027
  2. House · Florida's 21st districtJan 3, 2023 – Jan 3, 2025
  3. House · Florida's 18th districtJan 3, 2021 – Jan 3, 2023
  4. House · Florida's 18th districtJan 3, 2019 – Jan 3, 2021
  5. House · Florida's 18th districtJan 3, 2017 – Jan 3, 2019

Contact

Official channels, as published.

Website
mast.house.gov
Phone
202-225-3026
Office
2182 Rayburn House Office Building

Identifiers

The same member in other public records.

Sources and method

Every figure on this page traces to these records.

  • Members of Congress, their terms, committees and identifiers (The @unitedstates project (from the Biographical Directory of the U.S. Congress, the House and the Senate))unitedstates/congress-legislators: legislators, committees and current committee membership · data current to Oct 3, 2026 · loaded Oct 3, 2026 · license: CC0 1.0 (public domain dedication)
  • House roll-call votes (Office of the Clerk, U.S. House of Representatives)Office of the Clerk, U.S. House of Representatives, roll-call vote records · data current to Oct 3, 2026 · loaded Oct 3, 2026 · license: Public domain (U.S. Government work, 17 U.S.C. § 105)
  • Senate roll-call votes and DW-NOMINATE scores (Voteview (UCLA Department of Political Science))Lewis, Jeffrey B., Keith Poole, Howard Rosenthal, Adam Boche, Aaron Rudkin, and Luke Sonnet (2026). Voteview: Congressional Roll-Call Votes Database. https://voteview.com/ · data current to Oct 3, 2026 · loaded Oct 3, 2026 · license: Free to use with the required citation
  • Bill status: bills and resolutions, sponsors, actions, subjects and CRS summaries (U.S. Government Publishing Office (GovInfo), from Congress.gov (Library of Congress))GovInfo Bill Status bulk data (Congress.gov; summaries by the Congressional Research Service) · data current to Oct 9, 2026 · loaded Oct 9, 2026 · license: Public domain (U.S. Government work, 17 U.S.C. § 105)
  • Congressional district boundaries and relationship files (U.S. Census Bureau)U.S. Census Bureau, Cartographic Boundary Files (congressional districts) and 2020 relationship files · release cd116+cd118+cd119 · loaded Oct 3, 2026 · license: Public domain (U.S. Government work, 17 U.S.C. § 105)
  • ZIP code (ZCTA) to congressional district crosswalk (U.S. Census Bureau)U.S. Census Bureau, 2020 relationship files (ZCTAs, tracts and congressional districts); shares computed by Analisa · release 2020 · loaded Oct 3, 2026 · license: Public domain (U.S. Government work, 17 U.S.C. § 105)
  • Federal contract transactions (Federal Procurement Data System) (U.S. Department of the Treasury, USAspending.gov)USAspending.gov, prime award contract transactions (FPDS) · data current to Oct 9, 2026 · loaded Oct 9, 2026 · license: Public domain (U.S. Government work, 17 U.S.C. § 105)
  • Committees, candidates and committee contributions to candidates (Federal Election Commission)FEC bulk data: committee master, candidate master (candidates' names, no addresses), linkages, PAC summaries, all-candidates summaries and contributions from committees (no individual contributors) · data current to Oct 9, 2026 · loaded Oct 9, 2026 · license: Public domain (U.S. Government work, 17 U.S.C. § 105)
  • Positions are shown only where a roll call recorded them; voice votes and unanimous consent record none.
  • Activity counts describe volume and attendance; they are not a measure of quality.
  • Money and votes are shown side by side; neither explains the other.