I found Donald Trump to be very attuned to what was going on around the world.

When you look back, history is not going to be kind to these last 16 years from 2000 to 2016.

We have zero strategic thinking out of our White House. And we have a national security structure that has lost its way when it comes to strategic thinking and strategic decision-making.

Donald Trump is a great listener, and he's a good challenger. He doesn't come across as a person who thinks he knows it all. In fact, he once told me he has had lot of things to learn.

One of the things I learned was that Putin has no respect for the United States leadership. Not for the United States, but the leadership.

Obama's decision to leave, to not sustain the victory that resulted after eight years of fighting, from 2003 to 2011 in Iraq, was another incredibly stupid decision. It was totally based on politics, not based on any notion of national security. It's a nightmare for our national security. And then you have the Libya intervention.

Islam is an ideology and there's a religious component to it that's radicalized and in some cases it masks itself behind that religion, especially in America, because of freedom of religion.