← All outside spenders

Outside spender

Main Street Fund

FEC committee C00957928

Loser

Main Street Fund spent $4.8M on independent expenditures in the 2026 federal elections, and 100% of it helped Republicans (FEC filings through Oct 14, 2026). 0% of the money with a result ended up on the winning side ($0 won, $4.8M lost).

Outside spending

$4.8M

On the winning side

0%

$0

On the losing side

$4.8M

Supporting vs attacking

1% / 99%

$28K for, $4.8M against

Google says Main Street Fund also spent $206K on Google and YouTube ads this cycle (4% of its FEC-reported outside spending). All ad buyers →

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 Race not called yet Result not matched
CandidateRaceSpendingAmountPaid off?
Adam HamiltonKansas SenateAttacking$4.8M✗ No
Roger MarshallKansas SenateSupporting$28K✗ No

Questions people ask

How much did Main Street Fund spend in 2026, and did it win?
Main Street Fund spent $4.8M on independent expenditures in the 2026 federal elections, and 100% of it helped Republicans (FEC filings through Oct 14, 2026). 0% of the money with a result ended up on the winning side ($0 won, $4.8M lost).
Which candidates did Main Street Fund spend the most on in 2026?
against Adam Hamilton (Kansas Senate, $4.8M, lost); for Roger Marshall (Kansas Senate, $28K, lost).