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After a series of defeats to rival Ted Cruz - including a shutout in Colorado most recently - does Donald Trump plan to make any changes to his campaign strategy?

Trump spokesperson Katrina Pierson told Martha MacCallum on "America's Newsroom" that the problem isn't the GOP front-runner's strategy, but the election process that the Republican Party establishment has put in place.

"It is not about time, it is not about who was on the ground for the longest. It is about the selection process of the delegate system being rigged by the party," Pierson said, comparing Colorado's voting process to a "pyramid scheme."

"This is the anti-Donald Trump movement," Pierson stated. "The establishment has joined with Ted Cruz ... The idea is not to support Ted Cruz, it's to stop Donald Trump from winning the nomination."

She said that they were aware that the rules were stacked against the Trump campaign in Colorado, which meant they had no real shot at winning.

"When there is a primary where actual voters get out and vote, Mr. Trump does do very well," Pierson said. "It's the things that happen on the back end, particularly in these caucus states, where you have a selection process that does disenfranchise the voter and awards delegates to whomever the party chooses."

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