In the U.S. House, incumbents are running for reelection in all of Illinois’ 17 districts. That includes Chuy Garcia in the 4th Congressional District, who faces GOP challenger Lupe Castillo

Illinois Democrats in congressional races hope to fend off challenges from Republicans fighting to keep control of the U.S. House

The supermajority party appears unlikely to expand their numbers as Republicans fended off several well-funded challenges across the state. In central Illinois, incumbent lawmakers in both parties held their own.