Former Colorado Gov. John Hickenlooper is considered one of the Democrats’ strongest candidates for flipping a Republican-controlled Senate seat this fall. But he’s made missteps that have led some voters to question whether they can support him ahead of the state’s Tuesday primary.

Former Colorado Gov. John Hickenlooper is considered one of the Democrats’ strongest candidates for flipping a Republican-controlled Senate seat this fall. But he’s made missteps that have led some voters to question whether they can support him ahead of the state’s Tuesday primary.