Afghanistan is not like what's happening in Chicago. People are being shot left and right.

I will suspend immigration from regions comprised of radical Islamic terrorists, including the suspension of the Syrian refugee program which is taking in thousands and thousands of people that we have no idea where they come from, no idea who they are.

[Chinese] have no respect for our President - which I can understand that - they have no respect for [Barack] Obama, they have no respect for our country, and they're getting away with murder.

We will finally complete the biometric entry-exit visa tracking system which we need desperately. For years Congress has required biometric entry-exit visa tracking systems, but it has never been completed. The politicians are all talk, no action, never happens. Never happens.

I was against the war with Iraq. First of all, they didn't knock down the World Trade Centre. It wasn't Iraq that knocked down the World Trade Centre.

I think I'd be able to get along with Vladimir Putin.

In a little while, I'd like to address one of the most important aspects of America's national security, and that's cyber security. To truly make America safe, we must make cyber security a major priority, which I don't believe we're doing right now, for both government and the private sector.