U.S. Representative · FL · District 21
Brian J. Mast
RepublicanTerm through January 2027
Funding profile · 2023–2024 cycle
34% of the money Mast raised came from small donors.
More grassroots-funded than 94% of the House.
Mast raised $4.0M across the two-year election cycle (2023–2024), and ended the period with $1.8M cash on hand. Here is where the money came from.
- Small donors
- 34%$1.4M
- Large donors
- 38%$1.5M
- Bundled
- 5%$0.2M
- PACs
- 9%$0.4M
- Other
- 14%$0.6M
Against the house
How Mast compares to the typical member.
- Small-donor share
- 34%vs 5% house median
- PAC share
- 9%vs 37% house median
Who has a stake in Mast
The organizations behind the money.
Mast's largest organized backing comes from AIPAC. That counts the group's own PAC check plus the individual donations it bundled, not just the direct check.
Money organized for Mast
AIPAC›
$199K
AIPAC›
$199K
The American Israel Public Affairs Committee, a pro-Israel lobby that both gives directly and bundles individual donations; its super PAC (United Democracy Project) runs large independent campaigns in primaries.
Who it funds, across Congress
59% Democrats · 40% Republicans · $38.7M to 359 members
Outside spending, by party
Spent $13.9M to elect Democrats; $5.0M to defeat Democrats.
National Automobile Dealers Association PAC›$10K
The National Automobile Dealers Association's PAC, representing franchised car dealers.
Who it funds, across Congress
31% Democrats · 69% Republicans · $2.4M to 323 members
Mr. Southern Missourian In The House PAC›$10K
Who it funds, across Congress
0% Democrats · 100% Republicans · $955K to 138 members
Kratos Defense & Security Solutions Inc. Political Action C›$10K
Who it funds, across Congress
25% Democrats · 75% Republicans · $190K to 31 members
Hispanic Leadership Trust›$10K
Who it funds, across Congress
0% Democrats · 100% Republicans · $80K to 8 members
Outside spending, by party
Spent $2K to elect Republicans.
› What is organized money?
An organization reaches a member two ways. Its own PAC writes a direct check. And it bundles: it gathers individual donations from its supporters and routes them through its conduit. Both count here as one “organized” total. The bundled part is already inside the individual giving shown in the funding mix above. Here it is regrouped by the organization that gathered it, so you can see who did the organizing.
The same money, by industry
Which industries have a stake.
The same organized money, grouped by the industry of the organization that moved it. It shows the interests behind Mast's backing, not just the individual groups.
Plus $110K from organizations whose FEC name did not sort into an industry.
The money spent about Mast
Spent for or against.
Outside groups also spend on their own to elect or defeat Mast, running ads for or against the race. This money never passes through the campaign, so it is counted apart from the money organized for Mast.
American Veterans Support Group PAC$51K
To help Mast$51KTo hurt Mast—American Veterans Initiative PAC$20K
To help Mast$20KTo hurt Mast—
American Veterans Support Group PAC›$51K—$51K
American Veterans Support Group PAC
American Veterans Initiative PAC›$20K—$20K
American Veterans Initiative PAC
FEC filings, 2023–2024 cycle · as of August 2026 · showing the top 5 funders of 100 organizations with a stake
About this data
FEC-disclosed receipts for the 2023–2024 cycle. This is the disclosed money only. Spending by outside groups that do not reveal their donors, the dark money that set a record in 2024, never appears in these figures.
Every percentage here is a share of all receipts, not of individual contributions only. So the small-donor share counts transfers, loans, and other money in its base, and can read higher than figures that divide only by individual money.
PAC figures are contributions to Mast's campaign committee from FEC filings. Industry labels are grouped from each committee's name and are approximate. Joint fundraising committees and small-dollar conduits like ActBlue and WinRed are not counted.
Support for requiring the groups that spend on elections to name their donors, across both parties. Congress has not passed the DISCLOSE Act.
Where Mast stands