Brian Jeffery Mast
Republican
· FL-21 · 117th 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
65.0
Moderately exposed
↓ -2.6
vs 118th (53.9)
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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
12.0
/ 12
Outside spendingmoney spent by groups to help elect them
1.7
/ 6
Spent to help elect them
$658,817
Outside groups that spent to help elect this member — this drives the outside-spending bar above
Spent to defeat this member
$175,445
Outside groups that spent to defeat this member (not counted in this score)
Lobbyinghow hard lobbyists push the committees this member sits on
3.3
/ 10
Vote alignmenthow often they vote the way their donors want
8.5
/ 12
Contribution timingmoney arriving near key votes
< 0.1
/ 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
12.2
/ 16
Cluster network breadthhow many coordinated funding networks back this member
0.5
/ 10
Committee jurisdiction powerthe legislative reach of the committees this member sits on
2.9
/ 10
Foreign interestforeign-interest money — Israel-policy PACs and FARA-registered institutional lobbying allocated by committee jurisdiction
9.8
/ 12
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.
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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 |
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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
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Who funds Mast
Every funding network we can measure, ranked by influence
$6,202,883
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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%
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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
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Top Donors
Biggest sources of contributions, grouped by employer, this cycle
FEDERAL AVIATION ADMINISTRATION
$6.43M
FEDERAL AVIATION ADMINISTRATION
$6.33M
BOEING
$4.38M
LOCKHEED MARTIN
$3.34M
COMCAST CC OF WILLOW GROVE
$2.63M
GENERAL MOTORS
$2.24M
COMCAST CC OF WILLOW GROVE
$2.07M
RAYTHEON TECHNOLOGIES
$2.06M
DELTA AIR LINES
$2.01M
DELTA AIR LINES
$1.92M
AMERICAN AIRLINES
$1.66M
ENTREPRENEUR
$1.59M
RAYTHEON TECHNOLOGIES
$1.37M
KPMG LLP
$1.33M
LEIDOS
$1.28M
UNITED AIRLINES
$1.27M
COZEN O CONNOR
$1.16M
RAYTHEON TECHNOLOGIES
$1.07M
UNITED PARCEL SERVICE
$1.05M
UNITED AIRLINES
$1.01M
Where the outside money comes from
How much of the outside spending for and against Brian Jeffery 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.
$819K
HOUSE MAJORITY PAC NETWORK
$561K
DCCC
$308K
SPECIAL OPERATIONS FOR AMERICA
$173K
WOMEN VOTE
$151K
AMERICAN VETERANS INITIATIVE PAC
$142K
CHANGE NOW
$110K
EDF ACTION VOTES
$100K
SLF PAC
$100K
AMERICA'S FUTURE MAJORITY FUND
$88K
ENVIRONMENT AMERICA ACTION FUND
$84K
FIREFIGHTERS COALITION OF AMERICA PAC
$61K
VALOR PROJECT
$25K
COALITION FOR AMERICAN VETERANS POLITICAL ACTION COMMITTEE (COALITION FOR AMERICAN VETERANS PAC) (CAV PAC)
$20K
PATRIOTS, LIBERTY, AND PROSPERITY PAC
$11K
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
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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 Jeffery 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 |
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Revolving Door
3 former staff members
who worked for Brian Jeffery 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 |
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Brian Jeffery 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