Fundraising in Illinois' 6th Congressional District

Incumbent Sean Casten is up for election in Illinois' 6th Congressional District in 2026. This race is rated as Solid D. We estimate that $2.75M has been spent on this race over the last two years. Democrats have outspent Republicans by $2.10M over that time period, per our estimates.

Cumulative Spending by Party

Note: Recent data is often incomplete due to lags between spending and disclosure

Projected Outcome

We estimate a 96% chance of a Democratic win

per latest estimates

Sean Casten

Quarterly Committee Fundraising Amount: $314,296

% Individual: 57.12%

Committee Cash on Hand: $1,285,018
Niki Conforti

Quarterly Committee Fundraising Amount: $38,647

% Individual: 89.13%

Committee Cash on Hand: $22,661

Outside Spending

Committee	Candidate	Support/Oppose	Amount	Date	Description

Fundraising in Illinois' 6th Congressional District

Cumulative Spending by Party

Sean Casten

Niki Conforti

Outside Spending