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Paul Ryan disavows Trump's attack on judge's 'Mexican heritage'

One day after endorsing him, Ryan disavowed Trump's accusations of bias against the judge in the Trump University case because of his "Mexican heritage."

One day after endorsing Donald Trump, House Speaker Paul Ryan disavowed the presumptive Republican presidential nominee's accusations of bias against the judge in the Trump University case because of his "Mexican heritage."

Ryan told WISN's "Up Front with Vicki McKenna" on Friday that the comment was "out of left field."

"It's reasoning I don't relate to. I completely disagree with the thinking behind that," Ryan said.

And in an interview with MSNBC's Andrea Mitchell on Friday, Senate Majority Leader Mitch McConnell said Trump should be doing more to unite Republicans. Though McConnell said he was unfamiliar with Trump's comments about the judge, the real estate mogul's attacks on New Mexico Gov. Susana Martinez were "completely unfortunate and unnecessary."

"These attacks don't serve the candidate very well at this point," McConnell said.

In an interview with the Wall Street Journal, Trump said U.S. District Judge Gonzalo Curiel's "Mexican heritage" is a conflict in him presiding over the fraud case against Trump University. "I'm building a wall. It's an inherent conflict of interest," Trump said.

"He clearly says and does things I don't agree with, and I've had to speak up on time to time when that has occurred," Ryan said. "And I'll continue to do that if that's necessary. I hope it's not."

This article first appeared on NBCNews.com