JOE Biden got heated with a reporter and compared taking a Donald Trump cognitive test to the journalist "taking a test for cocaine."
"No, I haven't taken a test. Why the hell would I take a test?" Biden snapped during the interview with the National Association of Black Journalists and National Association of Hispanic Journalists.
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In the interview, that is set to air on Thursday, the Democrat continued: "Come on, man. That's like saying you, before you got on this program, you take a test where you're taking cocaine or not. What do you think? Huh? Are you a junkie?"
Biden has previously confirmed that he has "been tested and I'm constantly tested" for cognitive decline.
"I can hardly wait to compare my cognitive capability to the cognitive capability of the man I'm running against," he said at a campaign event in June.
Trump has previously bragged about his cognitive abilities and drawn attention to his opponent's mental state.
Last month, the president recalled taking a "very hard" cognitive test and told Fox News host Chris Wallace that he "aced" the test.
The host said the exam, which takes roughly 10 minutes to complete, includes a "picture and it says 'what's that' and it’s an elephant."
But Trump called that a "misrepresentation. Because, yes, the first few questions are easy, but I'll bet you couldn't even answer the last five questions. I'll bet you couldn't, they get very hard, the last five questions."
"Well, one of them was count back from 100 by seven," Wallace said.
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"You couldn't answer — you couldn't answer many of the questions," Trump said. "I'll get you the test, I'd like to give it. I'll guarantee you that Joe Biden could not answer those questions."
Trump said he answered all 35 questions correctly.
When being questioned about what he would say to the president for commenting on his cognitive state, Biden said: "Well, if he can't figure out the difference between an elephant and a lion, I don't know what the hell he's talking about."