Newt Gingrich blasted Donald Trump this morning on “Fox News Sunday” for the GOP nominee’s continued attacks on Gonzalo P. Curiel, the judge overseeing the Trump University lawsuit that The Donald insists can’t be fair in the case because of Curiel’s “Mexican heritage.”

Gingrich called Curiel an “American, period” and said these attacks are “one of the worst mistakes Trump has made. I think it’s inexcusable.”

Wait until Newt finds out Donald Trump now questions the ability of Muslims judges to treat him fairly, too:

WATCH:

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Related:

Donald Trump adds Muslim judges to his ‘list’