Illinois 12th Congressional District

In the Republican-dominated 12th Congressional District, the GOP Congressman is projected to win reelection easily over Democrat Brian Roberts.

U.S. Rep. Mike Bost, R-Murphysboro, won the GOP nomination in Illinois' 12th Congressional District for a sixth time on Tuesday, warding off a challenge by former Illinois legislator Darren Bailey, R-Xenia.

While Republicans hold a minority in Illinois, the party has a stronghold in the southern part of the state.

Illinois’ primary election day is March 19, but early voting is already underway. Here is key information on how to vote and what to expect on your ballot.

U.S. Rep. Mike Bost, R-Murphysboro, and former Illinois state senator Darren Bailey, R-Xenia, are running against each other in the 2024 Republican primary for Illinois' 12th Congressional District. The polls open next Tuesday.

Illinois' 2024 primary election will be held next week. Who will be on the ballot? Enter your address to see the candidates on your ticket.

The two Republicans have comparable but diverging paths to advancing the interests of constituents of Illinois and the 12th Congressional District. U.S. Rep. Mike Bost, R-Murphysboro, is aiming to hold off his challenger, former Illinois state Sen. Darren Bailey, R-Xenia, in their primary.

While both Republican candidates voting records align with National Rifle Association and Gun Owners of America, they differ on an issue going before the U.S. Supreme Court this week.

“Congressman Mike Bost is doing a fantastic job representing the great people of Illinois’ 12th Congressional District,” Trump said in a statement on his social media platform, Truth Social, announcing the endorsement Tuesday. "Mike was a stalwart supporter of our America First agenda during my record-setting administration."

Politicians, judges and billionaires, as well as private citizens and business groups, are helping to fund the 2024 campaigns of U.S. Rep. Mike Bost and former state senator Darren Bailey.