Reince Priebus, chairman of the Republican National Committee, said Friday he did not expect Donald Trump to run for president as a third party candidate if he fails to win the Republican nomination.

Speaking to Greta Van Susteren on Fox News, Priebus said he expected a Republican to beat Hillary Clinton, the presumptive Democratic nominee.

"I think he knows that ... if Hillary Clinton is going to get beat, there's only one party that's going to beat her: It's the Republican Party," Priebus said of Trump.

The business mogul has come under fire in recent weeks for his controversial comments about immigration and Arizona Sen. John McCain's war record.

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