Fox News anchor Megyn Kelly on Thursday night said Donald Trump Donald John TrumpObama calls on Senate not to fill Ginsburg's vacancy until after election Planned Parenthood: 'The fate of our rights' depends on Ginsburg replacement Progressive group to spend M in ad campaign on Supreme Court vacancy MORE is "out of line" for calling the Mexican heritage of a federal judge who is overseeing a fraud lawsuit against Trump University a conflict of interest.

"You tell me — I'm a journalist here at Fox News and I've been doing legal commentary here for 10 years — this is out of line," Kelly told guest Bill Bennett on her show "The Kelly File."

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"Yeah, it's out of line," Bennett responded. "It's a shame, too, because it was a good day, it was an important day for Trump."

Trump escalated his fight against U.S. District Judge Gonzalo Curiel by telling The Wall Street Journal that the judge had "an absolute conflict" presiding over the case because of his "Mexican heritage."

Trump cited his stance on illegal immigration, saying, "I'm building a wall. It's an inherent conflict of interest."

Kelly, a former attorney, came to the judge's defense, noting the judicial code of conduct prevents the judge from personally responding to Trump.

"People are saying this judge is a member of La Raza, the group that's been protesting Donald Trump. He isn't! He's a member of a Hispanic lawyers association that has no partisan stripes whatsoever," Kelly said.

"Secondly, the man is not Mexican," Kelly said. "His parents are Mexican, he's of Mexican heritage. He was born in Indiana."

"Third, he has no conflict of interest," Kelly said. "Now Donald Trump is saying the judge needs to be investigated, someone should look into him just because he's ruled against Donald Trump in this litigation repeatedly."

"That doesn't make you biased. It doesn't!"