Has there ever been such an elaborate rollout for the results of a DNA test?
On Monday morning, Elizabeth Warren—Massachusetts senator, likely presidential candidate—unveiled a web page with five videos featuring interviews of family, friends, students, former colleagues, and the Stanford geneticist Carlos Bustamante. Republicans have for years accused Warren, a Democrat, of faking American Indian ancestry to advance her career. (There is no evidence she professionally benefited from it.) On the matter of her DNA, Bustamante tells her in the video, “the facts suggest that you absolutely have a Native American ancestor in your pedigree.”
So here we are: A national politician has taken a DNA test to prove her heritage. To which President Donald Trump, who has repeatedly mocked Warren as “Pocahontas,” responded on Monday, “Who cares?”
It was Trump himself who purported to care. At a July rally, he said he’d toss Warren a DNA kit, even suggesting he would donate a million dollars to charity if she took it. (Trump today: “I didn’t say that. Nope, you better read it again.”) In 2016, Scott Brown, a...