In his first press conference for three months, Joe Biden declared Tuesday that he has been tested for cognitive decline, and claimed that he is "constantly" tested.

A reporter broached the subject of Biden's clear mental difficulties, noting that "Some have speculated that you are subject to some degree of cognitive decline,"

The reporter continued, "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."

"Have you been tested for some degree of cognitive decline?" the reporter then asked Biden.

"I've been tested and I'm constantly tested," Biden snapped back.

"Look, all you got to do is watch me and I can hardly wait to compare my cognitive capability to the cognitive capability of the man I'm running against," he declared.

We can't wait either Sleepy Joe.

The exchange came one day after it was revealed that a fifth of Democratic voters believe that Biden has "some form of dementia".

The Rasmussen poll revealed that a total of 38 percent of American voters think Biden isn't playing with a full deck, and highlighted that 61 percent of all voters believe it is "important" that Biden address the issue publicly.