Donald Trump versus Mitch McConnell: Tension could make 2022 election messy for Republicans

The fallout from Senate Minority Leader Mitch McConnell's broken alliance with former President Donald Trump could make the GOP's fight to wrest control of the Senate away from Democrats much messier, political experts say.

Trump slammed McConnell as an "unsmiling political hack" on Tuesday and threatened to oppose conservative senators who stick with the Kentuckian in future primaries.

Prep for the polls: See who is running for president and compare where they stand on key issues in our Voter Guide