James Clapper actually said...

Trump's travel ban fails to respond to threats to our country and actually undermines our security.

The ban is so obviously, palpably, indeed explicitly anti-Muslim in nature that it has--understandably--offended Muslim-American communities...

In general, it's a very important source for the FBI. The FBI has lots of informants who give them very valuable information.

I wish the President were as aggressive about doing something about the Russians undermining us as he is about this informant.