Jim Oberweis won the Republican primary for Illinois’ 14th Congressional District on March 17, defeating six other candidates. With 100% of precincts reporting, Oberweis received 25.6% of the vote, followed by Sue Rezin with 22.8%, Catalina Lauf with 20.1%, Ted Gradel with 13.3%, and James Marter with 11%. Jerry Evans and Anthony Catella also ran in the primary. Oberweis will run in the district’s general election on Nov. 3, 2020.

Three groups—Illinois Conservatives PAC; Our Future, Our Fight PAC; and the New Prosperity Foundation—spent a combined $1.14 million opposing candidates in the race. Of that total, around $1.08 million was spent opposing Oberweis, roughly 94% of all oppositional satellite spending.

Illinois’ 14th Congressional District is one of 31 U.S. House districts that Donald Trump (R) won in the 2016 presidential election and a Democratic House candidate won in 2018.

All 435 House districts will be up for election on Nov. 3, 2020, and the results will determine the partisan balance of the U.S. House in the 117th Congress. As of March 2020, Democrats have a 232-197 advantage over Republicans. If Republicans win 18 Democratic-controlled districts, they will win control of the House. If Democrats hold as many districts, they will maintain their control of the chamber.