Brian J. Mast
Republican
· FL-21 · 119th Congress
House Committee on Foreign Affairs (Chair) · the Pacific · and Nonproliferation · the Environment · and Cyber · North Africa · and Global Counterterrorism · and International Terrorism · House Committee on Transportation and Infrastructure
Influence Score
51.3
Moderately exposed
↓ -2.6
vs 118th (53.9)
— ◊ —
This score measures financial influence across twelve categories. Each bar shows how this member compares to all others in Congress. Longer bars mean more exposure.
Score breakdown — twelve categories
Contributionsmoney from PACs (political action committees) and individual donors
2.0
/ 12
Outside spendingmoney spent by groups to help elect them
1.4
/ 6
Spent to help elect them
$546,607
Outside groups that spent to help elect this member — this drives the outside-spending bar above
Lobbyinghow hard lobbyists push the committees this member sits on
4.7
/ 10
Vote alignmenthow often they vote the way their donors want
1.3
/ 12
Contribution timingmoney arriving near key votes
0.0
/ 6
Stock tradesbuying stocks in industries they regulate
0.0
/ 1
Dark moneyfunding from groups that hide their donors
< 0.1
/ 2
Outbound money distributionmoney this member sends out to the party and to colleagues
12.5
/ 16
Cluster network breadthhow many coordinated funding networks back this member
3.2
/ 10
Committee jurisdiction powerthe legislative reach of the committees this member sits on
4.7
/ 10
Foreign interestforeign-interest money — Israel-policy PACs and FARA-registered institutional lobbying allocated by committee jurisdiction
10.1
/ 12
Israel-policy PACs behind this score
AMERICAN ISRAEL PUBLIC AFFAIRS COMMITTEE POLITICAL ACTION COMMITTEE
$46,904 direct
NORPAC
$8,500 direct
REPUBLICAN JEWISH COALITION POLITICAL ACTION COMMITTEE (RJC-PAC)
$154 direct
FARA institutional lobbying
This member’s committees are targeted by $33.05M in lobbying from FARA-registered firms representing South Korea, Japan, Saudi Arabia. This exposure is weighted at 0.2% of face value in the score — $66K.
Israel-policy PAC money spent against this member: $613
— ◊ —
Score across four congresses
Score and tier for each Congress. Members are ranked against others in the same Congress, so tiers are comparable across rows. Raw scores reflect different data availability per Congress.
| Congress | Score | Tier |
|---|---|---|
| 116th · 2019-2021 | 56.0 | Moderately exposed |
| 117th · 2021-2023 | 65.0 | Moderately exposed |
| 118th · 2023-2025 | 53.9 | Moderately exposed |
| 119th · 2025-2027 | 51.3 | Moderately exposed |
— ◊ —
Biggest funding source
The single network behind the most money and influence
Total money from this network
$61,121
Number of funding networks contributing
1
— ◊ —
Where most of the money comes from
What share of their combined contributions and outside spending comes from a single network. Party committees are excluded.
Share from this one network
6.7%
Amount from this network
$56,904
Total from all networks
$847,469
Networks contributing
171
— ◊ —
Who funds Mast
Every funding network we can measure, ranked by influence
— ◊ —
Does the money match their power?
Whether their money comes from the industries their committees actually oversee
Money from industries they regulate
0.7%
Extra weight when money matches their committees
1.50×
Share of outside spending tied to their policy areas
100.0%
— ◊ —
Money timed to key votes
Donations arriving near key votes in the policy areas this member regulates
Biggest clusters of timed money
DINGLEDINE TRUCKING
$251
DINGLEDINE TRUCKING
$250
AMERICAN AIRLINES
$150
AMERICAN AIRLINES
$150
AMERICAN AIRLINES
$100
AMERICAN AIRLINES
$100
AMERICAN AIRLINES
$100
RAILROAD COMMISSION OF TEXAS
$50
DELTA AIR LINES
$20
DELTA AIR LINES
$20
— ◊ —
Top Donors
Biggest sources of contributions, grouped by employer, this cycle
INFORMATION REQUESTED PER BEST EFFORTS
$40K
INFORMATION REQUESTED PER BEST EFFORTS
$31K
EDW C LEVY
$20K
INFORMATION REQUESTED PER BEST EFFORTS
$20K
NEXTGEN MANAGEMENT
$15K
ST AUGUSTINE BEACH POLICE DEPT
$14K
NEXTGEN MANAGEMENT
$13K
NOBLE PROPERTIES
$12K
CLOSELINE
$12K
SINTAVIA
$12K
JUPITER MEDICAL
$11K
AUDAX
$10K
BRIAN DROR CPA
$10K
HORIZON INSTITUTE FOR PUBLIC SERVICE
$10K
REDWOOD RESEARCH
$10K
SILVER FALCON CAPITAL
$10K
SIRIS CAPITAL
$10K
COLUMNA
$10K
EXECUTIVE
$10K
SIMPLE LIFE
$10K
Where the outside money comes from
How much of the outside spending for and against Brian J. Mast comes from groups that disclose their donors versus groups that hide them
Total outside spending received
$205K
Disclosed outside spending
$205K
Dark-money outside spending
$8
Share that is dark money
0.00%
Dark money tied to their policy areas
$0
Groups hiding their donors
1
By funding network
WITH HONOR FUND II, INC.
$1.64M
HOUSE MAJORITY PAC NETWORK
$1.12M
DCCC
$616K
AMERICAN VETERANS INITIATIVE PAC
$423K
SPECIAL OPERATIONS FOR AMERICA
$346K
CHANGE NOW
$330K
WOMEN VOTE
$303K
SLF PAC
$225K
EDF ACTION VOTES
$200K
AMERICA'S FUTURE MAJORITY FUND
$175K
ENVIRONMENT AMERICA ACTION FUND
$163K
FIREFIGHTERS COALITION OF AMERICA PAC
$122K
VALOR PROJECT
$50K
COALITION FOR AMERICAN VETERANS POLITICAL ACTION COMMITTEE (COALITION FOR AMERICAN VETERANS PAC) (CAV PAC)
$40K
DEMOCRACY PAC
$25K
Groups that hide their donors
1 smaller group under $500
$8
Likely donors behind the dark money supporting this member
Inferred
Donors who fund the disclosed PACs in the same network as the hidden groups above. "Coverage" is how many of that network's disclosed groups a donor funds — the more they fund, the more likely they also back the hidden group.
NEVADANS FOR STEVEN HORSFORD
$80K
TITUS FOR CONGRESS
$80K
SUSIE LEE FOR CONGRESS
$79K
GEORGE SOROS
$525.74M
SMP
$81.00M
BLACKPAC
$47.25M
AB PAC
$25.50M
HMP
$15.00M
HOUSE MAJORITY PAC
$15.00M
CARE IN ACTION PAC
$6.60M
— ◊ —
Pro-Israel network donors
This counts contributions to this member from individuals whose FEC filings also show contributions to one of the 16 pro-Israel political action committees tracked by the Index. It is a measure of donor overlap — not a claim about why any individual gave, and not part of the influence score.
307 individuals who also gave to pro-Israel PACs contributed $1.34M to Brian J. Mast across 591 contributions.
Total from shared contributors
$1.34M
Shared contributors
307
Contributions
591
By cycle
| Cycle | Shared donors | Gifts | Total |
|---|---|---|---|
| 2022 | 68 | 190 | $499K |
| 2024 | 86 | 164 | $562K |
| 2026 | 188 | 237 | $278K |
— ◊ —
Revolving Door
3 former staff members
who worked for Brian J. Mast or the committees they serve are now registered lobbyists.
| Lobbyist | Former position | Firm | Clients | Filings | Years |
|---|---|---|---|---|---|
| NICOLE WRIGHT | U.S. Senator Marco Rubio, Legislative Assistant, Legislative Aide, Legislative C… | THE NICKLES GROUP, LLC | 8 | 8 | 2025–2025 |
| BRAD STEWART | Chief of Staff, Rep. Zach Nunn; Dpty. Chief of Staff, Rep. Brian Mast; Comms. Di… | IMPRESSION STRATEGY, LLC | 3 | 7 | 2025–2025 |
| BRADLEY STEWART | Chief of Staff, Rep. Zach Nunn; Dpty. Chief of Staff, Rep. Brian Mast; Comms. Di… | FOUNDRY PUBLIC AFFAIRS, LLC | 3 | 8 | 2025–2025 |
— ◊ —
Brian J. Mast sits in the middle of this Congress on the index. There is a measured sponsor relationship, but the vote-alignment signal is weaker — money flows; the votes do not follow in lockstep.
Data: FEC (Federal Election Commission) filings · 118th–119th Congress · lobbying disclosures · VoteView recorded votes
All findings derived programmatically from public records · No prior knowledge required
All findings derived programmatically from public records · No prior knowledge required