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.

Get involved in an issue that you're passionate about. It almost doesn't matter what it is ... We give too much of our power away, to the professional politicians, to the lobbyists, to cynicism. And our democracy suffers as a result.

If you like your healthcare plan, you'll be able to keep your healthcare plan, period. No one will take it away, no matter what.

In sectors like energy, I haven't been arguing for more spending per se; I've been arguing that it doesn't make sense for us to spend $4 billion subsidizing an oil industry that's mature and very profitable. We should be using that money to finance clean energy of the future.

Part of the power of the Internet is that information flows out there and it's generally not censored and it's generally not controlled by any single authority.

I think it is important first of all that the president of the United States underscores our commitment to partnering with countries around the world, even though we're not intimidated by terrorist organisations.

Nobody gets to threaten the full faith and credit of the United States just to extract political concessions.