Republican challenger Bruce Rauner defeated incumbent Democratic Governor Pat Quinn in the 2014 Illinois gubernatorial race. Rauner received 1,823,627 votes to Quinn's 1,681,343 votes. Libertarian candidate Chad Grimm received 121,534 votes (3.4%).
Rauner, a private equity firm chairman, won the Republican primary election over state Senator Kirk Dillard, state Senator and 2008 Republican gubernatorial nominee Bill Brady, and state Treasurer Dan Rutherford. Quinn easily defeated challenger Tio Hardiman for the Democratic nomination.
Constitution Party candidate Michael Oberline, Green Party candidate Scott Summers and Independent candidate Michael Hawkins also entered the race. The Illinois State Board of Elections sustained challenges to their petitions and disqualified all three candidates.