Answer
Ben Cardin has never lost an election. He has won every election he has participated in throughout his political career. This includes his initial election to the Maryland House of Delegates in 1966 and subsequent reelections, his election to the U.S. House of Representatives in 1986 and subsequent reelections, and his election to the U.S. Senate in 2006 and subsequent reelection in 2012 and 2018.