Don't get cynical. Don't ever think you can't make a difference.

There are certain occupations - probably, most prominently, politics - where there would be a bias against somebody who's agnostic or atheist in running for office.

The things that led me to run for office - trying to figure out how we create an economy where everybody's got a fair shot and if you work hard, you can achieve your dreams.

America is a nation of immigrants. And so the question is, how do we make legal immigration faster, less bureaucratic, cut the red tape?

I do have an obligation to make sure that I am following some of the rules. I can't simply ignore laws that are out there.

Today, more than ever before, science holds the key to our survival as a planet and our security and prosperity as a nation. It's time we once again put science at the top of our agenda and work to restore America's place as the world leader in science and technology.

We reject the use of national security letters to spy on citizens who are not suspected of a crime.