I know Vladimir Putin. He respects strength. He lied to our president's [Barack Obama] face; didn't both to tell him about warplanes and troops going into Syria. We need to speak to him from a position of strength.

When Iran continues to get away with bad behavior, what do our allies who are Iran's enemies think about us? It is why we cannot stand by while Russia allies itself with Iran. You can't outsource American leadership to Russia. Russia isn't on our side. They're on their side and Iran's side.

Nobody needs to worry about my toughness.

[Hillary] Clinton, we are not where we need to be in the fight against ISIS.

What is really disappointing about this president is not just lack of leadership, but his tendency to always place the blame for his lack of leadership somewhere else

Everything Bill Clinton has done is fair game. He's a former president. I just don't think that is the most effective way to beat Hillary Clinton, because while all that was going on there were a lot of women who felt for whatever reason great sympathy for Hillary Clinton. Look, if my husband were doing that, I would have left him. I would not have behaved the way Hillary Clinton did.

It's not a world war yet, but we're at war, because ISIS has declared war on us.