A president cannot make decision on what someone might know in the future.

I have been an underdog my whole life, both in life and in politics. We're going to do well. We're going to pick up a lot of delegates on Super Tuesday.

Donald Trump has the benefit of the fact that he's dominated media coverage, I mean, literally dominated media coverage because of the outrageous things he says and so forth. That's going to end here. There's going to be real fight now for the heart and soul of the Republican Party and the conservative movement. And it is not - I will do whatever it takes to prevent it from being taken over by a con artist.

At a time when the American family is threatened as never before, redefining it away from the union of one man and one woman only promises to weaken it as a child-rearing, values-conveying institution.

I don't really like labels in politics, but I will gladly accept the label of conservatism.

Every single day, something comes out of the [Ted] Cruz campaign that's deceptive and untrue, and in this case, goes after my faith. This is a pattern now, and I think we're now at a point where we start asking about accountability.

There is not a single person in the national defense apparatus of this country that can guarantee you are going to be 100 percent right. And that's why as president, I'll take this very seriously.