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Member brief · 119th Congress

Rep. Brian J. Mast

R · Republican · U.S. Representative, Florida 21st District1

In Congress
Since 2017 · 9 years
 Next election
Nov 3, 2026
 Committee leadership
Chair, Foreign Affairs

CommitteesChair, Foreign Affairs; Transportation and Infrastructure2

Participation3

97 / 100

Chamber median 98
655 of 674 roll calls

Party unity3

98 / 100

Chamber median 98
on 464 party-line votes

Cross-party agreement3

13 / 100

Chamber median 12
on 518 contested votes

Ideology score4

+0.46

Chamber median +0.19
−1 left · +1 right

Notable votes and votes by issue

In the full brief: five notable recent votes chosen by a fixed rule (most recent breaks with party first), each with the member’s vote, the party’s position and a source, plus how often Mast votes with the party on each issue.

Full briefs are part of Oathstar Pro. Team plans add alignment with your own scorecard and your PAC’s giving.

Money and lobbying

In the full brief: how many of Mast’s PACs belong to organizations that lobbied on bills Mast voted on or cosponsored, with the dollars beside the chamber median; the top bills; campaign totals and the top PACs.

Full briefs are part of Oathstar Pro.

Votes most like5

R Mike Johnson LA-4 99% of 426
R Trent Kelly MS-1 98% of 514
R Elise M. Stefanik NY-21 98% of 446

Share of roll calls both voted on where they voted the same way.

Next race

Nov 3, 2026 · Filed for re-election6

Others filed for this seat · +1 more

Bernard TaylorDemocratic Party
James MartinDemocratic Party
Elizabeth PandichDemocratic Party
Alexander R CookeNo Party Affiliation

Data as of Nov 2, 2026 · votes through Sep 16, 2026 · Method: https://oathstar.com/methodology · Live profile: https://oathstar.com/people/brian-j-mast

  1. 1. Member record and terms: congress.gov; unitedstates/congress-legislators, retrieved 2026-11-02. www.congress.gov/people/M001199
  2. 2. Committees: unitedstates/congress-legislators, retrieved 2026-11-02. github.com/unitedstates/congress-legislators
  3. 3. Participation, party unity, cross-party agreement, votes by issue: Oathstar from Voteview roll calls, 119th Congress, retrieved 2026-11-02. voteview.com/person/21735
  1. 4. Ideology: DW-NOMINATE first dimension, Voteview, 119th Congress. voteview.com/person/21735
  2. 5. Votes most like: Oathstar from Voteview roll calls, 119th Congress. voteview.com/data
  3. 6. Candidates: FEC filings, 2026 FL-21 race, retrieved 2026-11-04. www.fec.gov/data/elections/house/FL/21/2026/

Prepared with Oathstar · oathstar.com

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