The easiest way to get 15 minutes of fame is to be rude to somebody.

Climate change constitutes a serious threat to global security, an immediate risk to our national security, and, make no mistake, it will impact how our military defends our country.

We are one nation under God, and we may call that God different names but we remain one nation.

If you give up on the idea that your voice can make a difference, then other voices will fill the void: lobbyists and special interests; the people with the $10 million checks who are trying to buy this election and those who are making it harder for you to vote; Washington politicians who want to decide who you can marry, or control health care choices that women should make for themselves.

These days, the House Republicans actually give John Boehner a harder time than they give me. Which means orange really is the new black.

I won Iowa not because the demographics dictated that I would win Iowa. It was because I spent 87 days going to every small town and fair and fish fry and BFW Hall, and there were some counties where I might have lost, but maybe I lost by 20 points instead of 50 points. There's some counties maybe I won, that people didn't expect, because people had a chance to see you and listen to you and get a sense of who you stood for and who you were fighting for.

We are still the America that does the hard things, that does the great things. We're the nation that always dared to dream. We're the nation that dared to take risks.