Mike Bost

In the 2024 House race for IL-12, Mike Bost (R) defeated Brian Roberts (D) 74.2% to 25.8%. Mike Bost received 272,754 votes compared to 94,875 for Brian Roberts, a dominant 48.4-point margin reflecting a safely partisan district.

As the incumbent, Mike Bost benefited from name recognition, established constituent services, and the roughly 2-3 point advantage that sitting members typically enjoy. The 2024 presidential election drove higher voter turnout, which can help or hurt down-ballot candidates depending on the top of the ticket. The wide margin suggests this district is firmly in the Republican column for the foreseeable future.

In the 2022 House race for IL-12, Mike Bost (R) won with 75.0% of the vote, defeating Homer "Chip" Markel (D) who received 25.0%. A third candidate also appeared on the ballot. Mike Bost's 50.0-point advantage over the runner-up confirmed a comfortable win.

As the incumbent, Mike Bost benefited from name recognition, established constituent services, and the roughly 2-3 point advantage that sitting members typically enjoy. As a Republican, Mike Bost benefited from the historical midterm penalty against the president's party — with a Democrat in the White House, the opposition typically gains seats. The wide margin suggests this district is firmly in the Republican column for the foreseeable future.

In the 2020 House race for IL-12, Mike Bost (R) defeated Raymond C. Lenzi (D) 60.4% to 39.6%. Mike Bost received 194,839 votes compared to 127,577 for Raymond C. Lenzi, a dominant 20.9-point margin reflecting a safely partisan district.

As the incumbent, Mike Bost benefited from name recognition, established constituent services, and the roughly 2-3 point advantage that sitting members typically enjoy. The 2020 presidential election drove higher voter turnout, which can help or hurt down-ballot candidates depending on the top of the ticket.

In the 2018 House race for IL-12, Mike Bost (R) won with 51.6% of the vote, defeating Brendan Kelly (D) who received 45.4%. A third candidate also appeared on the ballot. Mike Bost's 6.2-point lead over the runner-up showed solid but not overwhelming support.

As the incumbent, Mike Bost benefited from name recognition, established constituent services, and the roughly 2-3 point advantage that sitting members typically enjoy. As a Republican, Mike Bost won despite the historical midterm penalty against the president's party (Republican Trump was in office).

In the 2016 House race for IL-12, Mike Bost (R) won with 54.3% of the vote, defeating Charles C. J. Baricevic (D) who received 39.7%. A third candidate also appeared on the ballot. Mike Bost's 14.6-point lead over the runner-up showed solid but not overwhelming support.

As the incumbent, Mike Bost benefited from name recognition, established constituent services, and the roughly 2-3 point advantage that sitting members typically enjoy. The 2016 presidential election drove higher voter turnout, which can help or hurt down-ballot candidates depending on the top of the ticket.

In the 2014 House race for IL-12, Mike Bost (R) won with 52.5% of the vote, defeating William L. Enyart (D) who received 41.9%. A third candidate also appeared on the ballot. Mike Bost's 10.6-point lead over the runner-up showed solid but not overwhelming support.

Mike Bost defeated the incumbent William L. Enyart (D), which is a significant political event — most incumbents win re-election by wide margins. This was a general election upset. As a Republican, Mike Bost benefited from the historical midterm penalty against the president's party — with a Democrat in the White House, the opposition typically gains seats.