What he’s saying: “He talks about cognitive capability. He doesn’t seem to be cognitively aware of what’s going on. He either reads and/or gets briefed on important issues — and then forgets it — or he doesn’t think it’s necessary that he needs to know it.”

“So the idea that somehow he didn’t know or isn’t being briefed, it is a dereliction of duty if that’s the case. And if he was briefed and nothing was done about this, that’s a dereliction of duty,” the former vice president added.

“I can hardly wait to compare my cognitive ability with the cognitive ability of the man I am running against.”