These endless legal challenges that define elections in New York are a joke in this country, and they are the reason why it is so expensive, or one of the reasons, it's so expensive to run here and why so many people decide not to run.

When I came into office, people said, 'Billionaire? How do they live? What do they eat? How do they sleep?' Today, they see me on the subway coming uptown. A couple of people say hi, some people smile and nod. Some people just sleep. It's not an issue.

I have my own army in the NYPD, which is the seventh biggest army in the world. I have my own State Department, much to Foggy Bottom's annoyance. We have the United Nations in New York, and so we have an entree into the diplomatic world that Washington does not have.

Organizing around a common interest is a fundamental part of democracy. We should no more try to take away the right of individuals to collectively bargain than we should try to take away the right to a secret ballot.

If you think of all the publicity about the terrible tragedy of Virginia Tech, we have a Virginia Tech in this country every day. It's just spread across 50 states.

The truth of the matter is: you can create a great legacy, and inspire others, by giving it to philanthropic organizations.

I'm worried about the world because there's chaos in the Middle East, and I think the Iranian deal [to lift sanctions] is going to continue the Shia-Sunni battles, the Persian-Arab battles.