When U.S. President Donald Trump this week attacked Supreme Court Justice Ketanji Brown Jackson and top House Democrat Hakeem Jeffries, two of America's most prominent Black figures, he chose a particularly pejorative insult: "low IQ person."

Trump insults people all the time -- online, in speeches, in official statements and directly to the faces of some reporters.

But the "low IQ" jab, with distinct racial overtones in the United States, is especially jarring.

Trump attacked Jackson -- a double Harvard graduate and the first Black woman on the Supreme Court -- on Wednesday as "that new, Low IQ person, that somehow found her way to the bench."

He has similarly assailed ethnic minority Democratic lawmakers, including Jasmine Crockett, Alexandria Ocasio-Cortez, Al Green, Rashida Tlaib and Maxine Waters.

While personally targeting Ilhan Omar -- a Minnesota representative born in Somalia -- the president has also broadly branded immigrants from the Horn of Africa nation as "low IQ people."

He has used the expression against perceived enemies who are........

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