Political experience: Klobuchar has never lost an election. In 1998, she won election to the open seat of Hennepin County attorney, the top prosecutor in the county that includes Minneapolis. She won reelection unopposed in 2002. In 2006, Klobuchar ran for Senate after U.S. Sen. Mark Dayton announced he would not seek another term. She won by 20 percentage points and won reelection in 2012 by nearly 35 points. In 2018, Klobuchar won a third term by a 24-point margin.