Noah proves how, beyond DNA, there's no doubt Warren is Native American The late-night comics on a DNA test, Warren's heritage and Trump's reaction in Best of Late Night.

Eileen Rivers | USA TODAY

Show Caption Hide Caption Noah proves how, beyond DNA, there's no doubt Warren is Native American Trevor Noah breaks down Trump's reaction to Warren's DNA test. Vote for your favorite joke at usatoday.com/opinion.

Call it a hobby. Or perhaps it's more like an obsession.

Apparently President Donald Trump just can't stop himself from trying to discredit politicians by delving into their familial ties — a loud and failing strategy. First, he was wrong when he questioned the authenticity of former President Barack Obama's birth certificate, implying the president was born in Kenya (a farce he perpetuated for years).

Now, he's off the mark again about Sen. Elizabeth Warren, whom he nicknamed Pocahontus in an attempt to call out as fraudulent her claims of Native American heritage. Warren recently aired the results of a DNA test that show she indeed does have native ancestry.

Trump long ago pledged to give money to charity if a DNA test proved him wrong. Then, he denied that he made such a pledge.

Late-night comic Stephen Colbert associated Trump's behavior with a familiar holiday dish. And Trevor Noah used the president's schtick to show just how Native American Warren actually is. Take a look in today's Best of Late Night, above.

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Follow Eileen Rivers on Twitter @msdc14.