Colorado Senator Rips Into Trump: How Can You Beat ISIS If You Can't Figure Out Convention?

Colorado's Republican senator went on a Twitter tear against Donald Trump tonight, suggesting he'd have a tough time tackling ISIS or Russian President Vladimir Putin if he can't comprehend convention rules.

Sen. Cory Gardner (R-Colo.), who endorsed Sen. Marco Rubio (R-Fla.) and served in the state's House of Representatives for several years before ascending to Congress, unseated incumbent Sen. Mark Udall (D-Colo.) in the last midterm elections.

Gardner began his tweetstorm by lauding Colorado GOP Chairman Steve House for "a fair and well run convention."

Trump protested the Colorado primary process, tweeting, "The people of Colorado had their vote taken away from them by the phony politicians. Biggest story in politics. This will not be allowed!"

Colorado GOP voters picked their delegates at precinct caucuses on March 1. Those delegates were swept up by Cruz at Saturday's convention.

Trump retweeted a suggestion that he hold a massive protest rally in Colorado and a video of a man who said he was a state delegate burning his party registration in his kitchen.