U.S. Senator · WI
Tammy Baldwin
DemocratSenate Class 1Term through January 2031
Funding profile · 2019–2024 term
31% of the money Baldwin raised came from small donors.
More grassroots-funded than 76% of the Senate.
Baldwin raised $59.6M across the full six-year Senate term (2019–2024), and ended the period with $25K cash on hand. Here is where the money came from.
- Small donors
- 31%$18.6M
- Large donors
- 54%$31.9M
- Bundled
- 1%$0.3M
- PACs
- 5%$3.1M
- Other
- 9%$5.6M
Against the senate
How Baldwin compares to the typical member.
- Small-donor share
- 31%vs 19% senate median
- PAC share
- 5%vs 14% senate median
Who has a stake in Baldwin
The organizations behind the money.
Baldwin's largest organized backing comes from Jstreetpac. That counts the group's own PAC check plus the individual donations it bundled, not just the direct check.
Money organized for Baldwin
Jstreetpac›
$170K
Jstreetpac›
$170K
J Street's PAC, a liberal pro-Israel group that backs candidates supporting a two-state solution, often a counterweight to AIPAC.
Who it funds, across Congress
100% Democrats · 0% Republicans · $4.0M to 144 members
Emily'S List›$81K
EMILY's List's PAC, which backs Democratic women who support abortion rights.
Who it funds, across Congress
100% Democrats · 0% Republicans · $2.4M to 47 members
Swing Left›$47K
Who it funds, across Congress
100% Democrats · 0% Republicans · $895K to 34 members
Frontline Usa›$20K
Who it funds, across Congress
100% Democrats · 0% Republicans · $406K to 36 members
UA Plumbers & Pipefitters›$15K
The United Association of Plumbers and Pipefitters' political committee.
Who it funds, across Congress
89% Democrats · 10% Republicans · $1.2M to 166 members
Outside spending, by party
Spent $200K to elect Democrats; $1.6M to defeat 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. Baldwinreceived so many small earmarked donations that these figures count only the largest ones. Read every total as “at least.”
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 Baldwin's backing, not just the individual groups.
Plus $1.4M from organizations whose FEC name did not sort into an industry.
The money spent about Baldwin
Spent for or against.
Outside groups also spend on their own to elect or defeat Baldwin, running ads for or against the race. This money never passes through the campaign, so it is counted apart from the money organized for Baldwin.
Senate Leadership Fund›$22.3M
To help Baldwin—To hurt Baldwin$22.3MThe super PAC aligned with Senate Republican leadership.
Fix Washington PAC$15.7M
To help Baldwin—To hurt Baldwin$15.7MAmericans For Prosperity Action›$5.6M
To help Baldwin—To hurt Baldwin$5.6MAmericans for Prosperity Action, the super PAC of the Koch network, spending independently for mostly conservative candidates.
Restoration PAC$4.6M
To help Baldwin—To hurt Baldwin$4.6MLCV Victory Fund›$1.7M
To help Baldwin$1.7MTo hurt Baldwin—The League of Conservation Voters' super PAC, spending on environmental-minded candidates.
Senate Leadership Fund›—$22.3M$22.3M
Senate Leadership Fund
The super PAC aligned with Senate Republican leadership.
Fix Washington PAC—$15.7M$15.7M
Americans For Prosperity Action›—$5.6M$5.6M
Americans For Prosperity Action
Americans for Prosperity Action, the super PAC of the Koch network, spending independently for mostly conservative candidates.
Restoration PAC—$4.6M$4.6M
LCV Victory Fund›$1.7M—$1.7M
LCV Victory Fund
The League of Conservation Voters' super PAC, spending on environmental-minded candidates.
FEC filings, 2019–2024 term · as of August 2026 · showing the top 5 funders of 609 organizations with a stake
About this data
FEC-disclosed receipts for the 2019–2024 term. 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 Baldwin'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 Baldwin stands