Doctors are 'surprised' Trump passed a recent cognitive test - according to Trump (VIDEO)

Donald Trump appeared on one of his favorite Fox News shows Hannity, to talk about Joe Biden's campaign. During the interview, Trump told host Sean Hannity that he had recently taken a cognitive test, and that he "aced it".

Complaining that Biden hasn't taken any cognitive tests, "because he couldn't pass one", Trump told Hannity that he took the test because "the radical left was saying, 'Is he all there, is he all there."

Trump went on to say that he took "a very standard test...at Walter Reed Medical Centre, in front of doctors, and they were very surprised. They said that was an unbelievable thing. Rarely does anybody do what you just did."

Maggie Haberman, White House Correspondent from the NY Times, questioned whether or not this was something routinely done by past presidents.