The Sentinel Action Fund spent $12M on independent expenditures in the 2024 federal elections, and 100% of it helped Republicans (FEC filings through Dec 31, 2024). Counting dollars, not candidates, and only races already called, 98% ended up on the winning side ($11M won, $285K lost).
Outside spending
$12M
On the winning side
98%
$11M
On the losing side
$285K
Supporting vs attacking
73% / 27%
$8.5M for, $3.1M against
Google says The Sentinel Action Fund also spent $364K on Google and YouTube ads this cycle (3% of its FEC-reported outside spending). All ad buyers →
Follow the money
Who filled the envelope
The Sentinel Action Fund reported $37M in gifts from people, companies, nonprofits and other PACs. The biggest are below.
- Timothy MellonIndividual$6.0M (16%)
- Ken GriffinIndividual$5.0M (14%)
- Right Vote Inc.Company / nonprofit$2.5M (7%)
- Paradigm Operations LPCompany / nonprofit$2.5M (7%)
- Elon MuskIndividual$2.3M (6%)
- Thomas PeterffyIndividual$2.0M (5%)
- James LiautaudIndividual$1.5M (4%)
- Leon Rachel CorpCompany / nonprofit$1.0M (3%)
- Thomas KlingensteinIndividual$1.0M (3%)
- Multicoin Capital Gp LLCCompany / nonprofit$1.0M (3%)
Where the money went
Biggest targets, with whether each one paid off.
✓ Backed the winner or attacked the loser ✗ Backed the loser or attacked the winner Result not matched
| Candidate | Race | Spending | Amount | Paid off? |
|---|---|---|---|---|
| Bernard F. Moreno | Ohio Senate | Supporting | $3.0M | ✓ Yes |
| Donald Trump | President | Supporting | $2.4M | ✓ Yes |
| Tim Sheehy | Montana Senate | Supporting | $2.0M | ✓ Yes |
| Kamala Harris | President | Attacking | $1.2M | ✓ Yes |
| Sherrod Brown | Ohio Senate | Attacking | $1.2M | ✓ Yes |
| Dave McCormick | Pennsylvania Senate | Supporting | $827K | ✓ Yes |
| Jon Tester | Montana Senate | Attacking | $492K | ✓ Yes |
| Sam Brown | Nevada Senate | Supporting | $239K | ✗ No |
| Robert P. Casey Jr. | Pennsylvania Senate | Attacking | $204K | ✓ Yes |
| Hung Cao | Virginia Senate | Supporting | $21K | ✗ No |
| Mike Rogers | Michigan Senate | Supporting | $21K | ✗ No |
| Jacky S. Rosen | Nevada Senate | Attacking | $5K | ✗ No |
Questions people ask
- How much did The Sentinel Action Fund spend in 2024, and did it win?
- The Sentinel Action Fund spent $12M on independent expenditures in the 2024 federal elections, and 100% of it helped Republicans (FEC filings through Dec 31, 2024). Counting dollars, not candidates, and only races already called, 98% ended up on the winning side ($11M won, $285K lost).
- Who funds The Sentinel Action Fund?
- Its biggest reported donors in the 2024 cycle were Timothy Mellon ($6.0M), Ken Griffin ($5.0M), Right Vote Inc. ($2.5M), Paradigm Operations LP ($2.5M), Elon Musk ($2.3M), out of $37M received from donors tracked here.
- Which candidates did The Sentinel Action Fund spend the most on in 2024?
- for Bernard F. Moreno (Ohio Senate, $3.0M, won); for Donald Trump (President, $2.4M, won); for Tim Sheehy (Montana Senate, $2.0M, won).