America is built around this premise that you can do it, and there are an awful lot of people who are unlikely to have done it who did.

I know how to make decisions and stand up to the criticism every day.

Buy what's deliverable, not what could be.

[Jeb Bush] could, as I describe it, run the railroad.[John] Kasich could run the railroad. Hillary Clinton can run the railroad. Running the railroad is the most important thing. You have got 4 million employees; you've got to make the system work, and it doesn't work very well.

When it comes to public school education, we have been unwilling to measure our results. We've been unwilling to pay based on performance. We have tenure where, even if you can't teach, you can't get fired. We've been unwilling to invest in new schools.

I was a Democrat before I was a Republican before I became an independent and I never changed my principles.

You can bet - a good chance of Hillary [Clinton], a good chance of [Donald] Trump - but not 100% in either case.