Former Gov. John Hickenlooper (D) defeated incumbent Sen. Cory Gardner (R) and six others in the U.S. Senate election in Colorado.
Gardner was first elected in 2014 after defeating incumbent Sen. Mark Udall (D) with 48% to 46% victory margin. This year, he was one of two incumbent Republican senators, along with Sen. Susan Collins of Maine, running for re-election in a state that Hillary Clinton (D) won in the 2016 presidential election, when she received 48% in Colorado to Donald Trump’s (R) 43%.
Hickenlooper was governor of Colorado from 2011 to 2019.
Thirty-five of 100 Senate seats are up for election. Republicans have a 53-47 majority. Of the 35 seats up, 23 are held by Republicans and 12 by Democrats, giving Republicans greater partisan risk this year.
Democrats need to win a net four seats to win an outright majority in the U.S Senate.