Who in this world of ours does Donald J. Trump think he’s bamboozling?

The Republican presidential nominee today sat before the National Association of Black Journalists and said — and you can’t make this stuff up — that Democratic presidential candidate Kamala Harris only recently identified herself as Black. It was his crass and boorish manner in which he actually questioned whether the vice president of the United States is who she has contended she is for as long as anyone can remember.

What the hell is the matter with this idiot?

Harris is the product of a Black father and an Indian mother. That means she is the first VP of Black and South Asian descent.

Trump’s cowardly attack, of course, drew the expected response from Harris, who in a few days will accept the Democratic nomination for president. She told a rally crowd in Atlanta, “If you’re going to say something about me, say it to my face!”

That was Harris’s way of challenging Trump’s waffling on his pledge to debate the Democratic candidate on Sept. 10. He and his campaign agreed to do so. Now he’s chickening out.

Just as Trump sought to foment the lie in 2008 about Barack Obama’s birthplace, questioning whether the future president was eligible to run for the office, he has launched yet another chickensh** effort to cast aspersions on another rival’s ethnicity.

This individual’s cowardice simply takes my breath away.