Obama has been the most lawless president we've ever had.

We see a missile here, a bomb there - looks good on CNN. This is nonsense. This is not a strategy of a serious commander in chief.

It's not beneficial when you have a presidential candidate like Donald Trump, telling his supporters "punch that guy in the face." I think everyone candidate ought to aspire toward civility, towards decency, towards bringing us together. I don't think we should be using angry and hateful rhetoric.

The media ought to be just giving a fair shake to everybody.

We should be breaking down barriers, not building walls.

ISIS is gaining strength because the perception is that they're winning. And President [Barack] Obama fuels that perception.

Congress needs to send a strong signal that direct communication with the leader of the free world is a privilege, particularly for a regime that has been as hostile as Iran has been towards America for more than three decades. President Rouhani needs to take these two simple steps to demonstrate good faith before any further discussions.