Donald Trump, the ex-President, is responding strongly to President Joe Biden’s doubts about his memory.

In a video on Wednesday, Trump said, “[Biden] went on a very poorly rated show last night, and he talked about Donald Trump and his wife — I don’t know the name of my wife.”

“He was referring to the fact that at CPAC… I made the statement that Melania was very popular because when I mentioned her name, the audience went wild. I then looked at the two people, man and wife, Matt and Mercedes Schlapp, and I said, ‘Wow, they really like the first lady,” he continued. “So this got taken as the fact that I thought Mercedes was the first lady.”

Trump then roasted Biden’s inability to make it off the stage “they say, ‘Oh he has trouble getting off the stage.’”

“I have no trouble getting off a stage,” he added.

Finally, Trump said, “The disinformation of the Democrats is unbelievable. They do it because they have a horrible candidate. Don’t associate me with the mental midget.”

In a post on Truth Social, he issued a challenge to Biden, writing, “Crooked Joe Biden must take a Cognitive Test. Maybe that way we would be able to find out why he makes such terrible decisions.”

“I took two of them, and ACED them both (no mistakes!). All Presidents, or people wanting to become President, should mandatorily take this test!” he added.