To pull off successful attacks in debates, you have to execute with nuance and subtlety. It has to be artful.

A Rick Santorum presidency would be very, very dangerous for America.

At some point he has to show that he has a vision of a better way. He can't just say 'The future is bleak, follow me.' Because no one will.

As in nature, politics abhors a vacuum. Without a strong voice for more moderate leadership, the Tea Party is filling that vacuum.

As a husband and as a father of girls, I cannot imagine any woman in my family making the sacrifice of sanity required to run for office. The limited reward for public service cannot blunt the cost.

America as we know it will end unless we end Medicare as we know it.

Reasonable people can reasonably disagree on policy.