When ignorant folks want to advertise their ignorance, you don't really have to do anything, you just let them talk.

If you want to right-size executive power relative to the other branches of government, the best way to do that is to have a healthy Congress in which the two parties are debating, disagreeing, but also occasionally working together to pass legislation.

Iran has agreed to deepen our coordination as we work to locate Robert Levinson, missing from Iran for more than eight years. Even as we rejoice in the safe return of others, we will never forget about Bob. Each and every day our hearts are with the Levinson family, and we will not rest until their family is whole again.

Climate change is one of the issues I worry most about because its impacts are enormous. But they're gradual, they're not immediate.

There may be no greater tribute to Steve Jobs' success than the fact that much of the world learned of his passing on a device he invented.

This is an extraordinary achievement, nearly nine years in the making.

I need you to go out and talk to your friends and talk to your neighbors. I want you to talk to them whether they are independent or whether they are Republican. I want you to argue with them and get in their face.