I love the protest signs protected by the First Amendment - some of them humorous, some of them passionate, some factual, some entirely incorrect - all of them free ideas.

America is an idea. And it's the solemn responsibility of each 'temporary' president to protect and nurture that noblest of all ideas - with integrity. This man, Mitt Romney, has shown - not through his experience, but through his actions and words - that he is unqualified to carry out that responsibility.

Less than a year after loading the company up with debt, Romney and Bain gave themselves bonuses four times bigger than the $8 million they had put into the deal.

I was approached by friends who encouraged me to run for an open seat - attorney general of Michigan. It was a big risk.

America needs to be able to be energy-independent, and the electric vehicle, the battery technology is one way of getting there.

We have gasoline at $2 a gallon. If that doesn't drive demand, I don't know what will.

Those who purify your water, inspect your meat, and test your kids toys, as well as a huge number of nurses, teachers, and our soldiers, are public employees. The firefighters who don't hesitate to rush toward danger while you run away from it - they are all public employees.