The Republican National Committee's chairman, Reince Priebus, battled back against Donald Trump's claims that the party's process for selecting president is "stacked against me."
The Republican front-runner has been outmaneuvered by rival Ted Cruz in a series of recent state meetings to select national convention delegates, and says the process was set up to protect party insiders and shut out insurgent candidates.
"The Republican National Committee, they should be ashamed of themselves for allowing this to kind of crap to happen. The rules are no good when they don't count your vote ... like in Colorado," Trump said on Tuesday at a rally in Rome, New York. "The rules are no good when you have to play dirty tricks to pick up delegates."
Priebus tweeted late Tuesday: "Nomination process known for a year + beyond. It's the responsibility of the campaigns to understand it. Complaints now? Give us all a break."