Leon Panetta: “At some point, he's got to get back to that serious responsibility of governing the country.”

I think the United States ought to be part and parcel of any agreement to be able to provide a security assurance to make sure that Ukraine is protected from the kind of invasion that we've seen from Russia.

If he is careless with that awesome power, the United States could very well find itself in another world war.

Mr. Trump has always prided himself on being a dealmaker, pledging in his campaign that he would resolve such conflicts in the first few days of his presidency.

And ... we’re going to have to respond. And right now, because our missile systems and our supply of weapons being down, this is a vulnerable period for the United States.