The lieutenant governor of Illinois is the second highest executive of the State of Illinois. In Illinois, the lieutenant governor and governor run on a joint ticket and are directly elected by popular vote. Gubernatorial candidates select their running mates when filing for office and appear on the primary election ballot together. Under the Illinois Constitution, when the governor of Illinois becomes unable to discharge the duties of that office, the lieutenant governor becomes acting governor. If the governor dies, resigns or is removed from office, the lieutenant governor becomes governor. Pat Quinn was the most recent lieutenant to rise to governor on the impeachment of Rod Blagojevich in 2009. The Lieutenant Governor oversees various state commissions under Illinois statutes. Historically, the lieutenant governor has been from either the Democratic Party or Republican Party. The current lieutenant governor is Democrat Juliana Stratton.