To restore America's competitiveness, we must recruit a new generation of science and technology leaders by investing in diversity.

If you're looking for the safe choice, you shouldn't be supporting a black guy named Barack Obama to be the next leader of the free world.

For more than four decades, the Libyan people have been ruled by a tyrant - Moammar Gaddafi. He has denied his people freedom, exploited their wealth, murdered opponents at home and abroad, and terrorized innocent people around the world - including Americans who were killed by Libyan agents.

Cutting our education budget, that's not a smart choice. That will not help America compete with China.

A man who took history in his hands, and bent the arc of the moral universe toward justice.

Maybe at the same time as I'm more confident today, I'm also more humble.

The last thing you want to do is raise taxes in the middle of the recession because that would just suck up and take more demand out of the economy and put businesses in a further hole.