Presumptive Democrat presidential candidate Joe Biden said during a press conference on Tuesday that he is “constantly tested” when asked by a reporter if he has been screened for cognitive decline. Some have speculated that you are subject to some degree of cognitive decline,” the reporter said. “I’m 65, I don’t have word recollection that I used to have, I forgot my train of thought from time to time. You got 12 years on me, sir.”