Back to profile Sample brief · Full briefs with Pro

Member brief · 119th Congress

Rep. Mario Diaz-Balart

R · Republican · U.S. Representative, Florida 26th District1

In Congress
Since 2003 · 23 years
 Next election
Nov 3, 2026
 Committee leadership
Vice Chair, Appropriations
Chair, National Security, Department of State, and Related Programs

CommitteesVice Chair, Appropriations2

Participation3

96 / 100

Chamber median 98
648 of 674 roll calls

Party unity3

96 / 100

Chamber median 98
on 452 party-line votes

Cross-party agreement3

16 / 100

Chamber median 12
on 506 contested votes

Ideology score4

+0.28

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 Diaz-Balart 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 Diaz-Balart’s PACs belong to organizations that lobbied on bills Diaz-Balart 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 416
R Ken Calvert CA-41 99% of 505
R Tom Cole OK-4 99% of 501

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

Nicole LocklinDemocratic Party
Yurina GilDemocratic Party
Deborah Ann Meidinger HoseyNo Party Affiliation

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

  1. 1. Member record and terms: congress.gov; unitedstates/congress-legislators, retrieved 2026-11-02. www.congress.gov/people/D000600
  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/20316
  1. 4. Ideology: DW-NOMINATE first dimension, Voteview, 119th Congress. voteview.com/person/20316
  2. 5. Votes most like: Oathstar from Voteview roll calls, 119th Congress. voteview.com/data
  3. 6. Candidates: FEC filings, 2026 FL-26 race, retrieved 2026-11-04. www.fec.gov/data/elections/house/FL/26/2026/

Prepared with Oathstar · oathstar.com

SAMPLE