Here's why nuclear defense makes sense. And I know something about this. A missile can take an airplane out of the air. A better missile can take a missile out of the air.

My advice would be that once [Donald Trump] enters office, there should be a separation, a blind trust or some kind of blind trust.

This is not the colonial empire that somehow he has in his hand. I’ve never felt that from him. I felt that from [George] W [Bush]. I felt that from [Bill] Clinton. I felt that from every American president, including ones I disagreed with, including [Jimmy] Carter. I don’t feel that from President Obama.

My advice would be the same advice that I gave President [George W.] Bush when he won in '04, and, kind of, wasn't followed. I think you go with the things you know you can pass.

The attacks of September 11th were intended to break our spirit. Instead we have emerged stronger and more unified.

I listen a little to the Democrats, and if one of them gets elected, we are going on defense," Giuliani continued. "We will wave the white flag on Iraq. We will cut back on the Patriot Act, electronic surveillance, interrogation and we will be back to our pre-September 11 attitude of defense.

Keep pressure on Iran, because pressure works.