Kamala Harris: I will prove to you that I am not a fool, unlike Trump

Democratic presidential candidate Kamala Harris is ready to take a mental aptitude test. So she responded to the remark of her Republican rival Donald Trump that she has a "very low IQ," CBS reports.

She also urged Trump to pass it too, calling it "unstable" and "unbalanced."

"Of course. And I would challenge him to do the same. But here's the thing, he is, he is, you know, that's what he resorted to. And I think he's actually becoming more unstable and unbalanced, and resorted to going personal because he doesn't really have a plan for the American people," Harris said.

Earlier, Donald Trump said that Harris, in an interview with American journalist Anderson Cooper, could not give direct answers to the simplest questions, which accurately indicates that "something is wrong with her."

Prior to that, Harris published a medical report in which her doctor Joshua Simmons confirmed that the politician was in "excellent health" a month before the upcoming presidential elections in November. The report says that Harris, 60, adheres to a "very healthy diet" and maintains an active lifestyle. Her last medical examination, conducted in April, did not reveal any abnormalities.

However, those who follow the events in the White House remember that the doctor of the current President Joe Biden, who has long been the subject of ridicule because of senility, constantly assured that the president was in great shape and he was all right with cognitive abilities.