Jeb Bush: “I have great doubts about Donald Trump's ability to be commander-in-chief.”

We have very good defense capabilities, so this is not a press conference to scare the bejesus out of people.

He has a proven conservative record. He has the executive experience to be able to lead on day one.

This guy is not going to win the nomination. That's the basic point. He is not going to win the nomination because he is not a serious candidate.

This is a man who insults his way to the nomination.