Sen. Cory Gardner (R-Colo.) hit back Monday night against assertions from the Donald Trump campaign that the process for selecting delegates in Colorado was "corrupt" and "rigged."
In a series of tweets, the junior senator defended the system his state had in place and blasted Trump for throwing a "temper tantrum."
Gardner previously endorsed Sen. Marco Rubio (R-Fla.) in the 2016 race for president, but has yet to make an endorsement since the Florida senator dropped out.
Trump national spokeswoman Katrina Pierson said on CNN Monday that the campaign planned to file complaints with the Colorado Republican Party over the process it used to select delegates.
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