Office
U.S. House
2026 contest
Illinois 6th District
This page currently shows current seat context and active FEC filings. It does not yet claim ballot certification, party nomination, or certified results.
Current officeholder
Casten, Sean
General election
November 3, 2026
Live FEC filings
4
FEC registeredBallot certifiedParty nomineeWon electionSeated
Candidates listed here are active FEC filings for this federal seat. Ballot certification, nominee status, and state election-office validation are not loaded yet.
Candidates
4 active FEC filings
SEAN CASTENFEC registered
DEMOCRATIC PARTY · Incumbent
First FEC filing: June 22, 2017 · Last filing: November 22, 2024
Has raised fundsFEC ↗
SKYLAR DUENSINGFEC registered
REPUBLICAN PARTY · Challenger
First FEC filing: September 19, 2025 · Last filing: July 28, 2026
Has raised fundsFEC ↗
JOSEPH RUZEVICHFEC registered
DEMOCRATIC PARTY · Challenger
First FEC filing: October 7, 2025 · Last filing: December 7, 2025
Has raised fundsFEC ↗
NIKI CONFORTIFEC registered
REPUBLICAN PARTY · Challenger
First FEC filing: July 1, 2021 · Last filing: April 17, 2025
Has raised fundsFEC ↗
Sources
Seat structure source: Official House roster ↗
Candidate filing source: Federal Election Commission candidate filings and candidate data APIs.