James Clapper: I question Trump's fitness for office

“I do wonder, as well about the people that attracted to this — to this rally as others. You know, what are they thinking? Or why am I so far off base? Because I don’t understand the adulation. Of course, that’s why I think he gravitated to having this rally as ill-timed as it is,” Clapper said.

“You said you questioned his fitness. Is he a threat to national security? The president?” Lemon asked.

“Well, he certainly could be. Again, having some understanding of the levers that a president can exercise, I worry about, frankly, you know, the access to the nuclear codes,” Clapper answered.