Republican presidential front-runner Donald TrumpDonald John TrumpIvanka Trump pens op-ed on kindergartners learning tech Bharara, Yates tamp down expectations Mueller will bring criminal charges Overnight Cybersecurity: Equifax security employee left after breach | Lawmakers float bill to reform warrantless surveillance | Intel leaders keeping collusion probe open MORE late Wednesday highlighted a "big protest march" in Colorado on Friday after he was shut out of delegates in the state.

Trump fired off several tweets, claiming that "over one million people have been precluded from voting" and that party rules were designed to hurt his campaign.

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Asked in an interview aired Thursday morning on "Fox and Friends" if he thought the state intentionally announced the change after he declared his bid, Trump responded, "I think so, yeah, I think so, because they saw that I do very well in Colorado, so I think so."

Party officials have been pushing back for days against Trump's claims, noting that rival Ted CruzRafael (Ted) Edward CruzWhatever you think the Alabama special election means, you’re probably wrong This week: Congress gets ball rolling on tax reform Week ahead: Senators work toward deal to fix ObamaCare markets MORE simply took advantage of the delegate selection process after the state announced last August that it was scrapping its preference poll for local caucus-type meetings leading up to a state convention.

Cruz took all 34 delegates up for grabs in the state, where the Trump campaign did not have a robust organization to secure support. Trump has lashed out for days against the results, and the state Republican Party chairman indicated he's been getting death threats over the outcome.

A few hundred people have indicated online they plan to "peacefully assemble" outside the state Capitol on Friday to protest.

Trump's schedule has him traveling to Connecticut on Friday after campaigning in New York ahead of the state's Tuesday primary. He'll have a rally in Syracuse, N.Y., on Saturday.