Mike McCaul: “We shouldn't be naive about that process. It will be slow, it will be complicated, there will be difficulties along the…”

Senator Graham was a national security giant, a statesman of unmatched conviction, and a personal friend and mentor.

Without that, I would not advise Ukraine to sign this. They can't sign an agreement like Budapest and then allow Russia to invade again.

I think deterrence is the key here. And, Margaret, it is working.

I think Tom Homan will de-escalate the situation, as I have been calling for, for weeks.