Bruce Vincent Rauner (; born February 18, 1956) is an American businessman, philanthropist, and politician who served as the 42nd governor of Illinois from 2015 to 2019. A member of the Republican Party, he previously served as the chairman of R8 Capital Partners and chairman of the Chicago-based private equity firm GTCR. Rauner announced his candidacy for governor of Illinois in June 2013. He won the Republican nomination in March 2014 and defeated Democratic incumbent Pat Quinn in the general election. Throughout Rauner's term in office, he was unable to achieve many of his legislative goals due to the state's Democratically-controlled legislature, and a standoff between Rauner and the legislature over budget cuts led to a two-year budget crisis. In the 2018 gubernatorial election, Rauner narrowly survived a challenge in the Republican primary from State Representative Jeanne Ives, but lost the general election to Democratic challenger J. B. Pritzker in a landslide. Rauner and his lieutenant Evelyn Sanguinetti remain the last Republicans to have held statewide office in Illinois.