Companies that pollute should be taxed so that a product's cost to society is reflected in the price of that product.

Why does it have to be politics? Is there a dynamism to that world and a theoretical capacity to do things that draws many talented people? Absolutely. Are there other ways to be involved and lead an interesting life? Of course.

I stand before you today because this vision of government as the engine of opportunity is what I believe in.

The Tea Party isolated Mitt Romney from mainstream voters, linking him to a rabid ideology that he could not shake as he desperately tried to move to the middle in the closing weeks of the campaign. Lesson: The loudest voices don't often command the votes needed to win in November.

My career was obviously cut shorter than I wanted it to be.

Companies that pollute should be taxed so that a product's cost to society is reflected in the price of that product.

The world has conducted a massive macro-economic experiment since the cataclysm of 2008. In Europe, the fans of austerity have had their chance, and the results have been a disaster.