I saw the relation with Russia as necessary to the U.S., for the interests of the U.S. We worked very closely with them on the Sochi Olympics. We were working closely with them on the Iranian nuclear deal.

Remember the box fight: You start as a southpaw, you go back to fighting as a right-handed fighter.

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.

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

There are Muslims, who are moderate Muslims. And there's more of them than there are radicalized Muslims and are using Islam in its misinterpreted ideology.

NATO as a political alliance does need to be relooked at in terms of everything - resourcing, capabilities.

Russia ought to get Iran to back out of the proxy wars they are involved in.