The day that I can land at the airport in Baghdad and ride in an unarmed car down the highway to the Green Zone is the day that I'll start considering withdrawals from Iraq.

But I'm still a work in progress. My mother calls me quite frequently with various critiques of my performance on TV and other public events. She's usually pretty severe with her comments.

So when someone, a veteran stands up and say, "Here are the facts on the VA." He [Donald Trump] says, "No, your facts are wrong." Turns out her facts are right and his facts are wrong.

It's always the wacko birds on right and left that get the media megaphone.

We have many advantages in the fight against global warming, but time is not one of them. Instead of idly debating the precise extent of global warming, or the precise timeline of global warming, we need to deal with the central facts of rising temperatures, rising waters, and all the endless troubles that global warming will bring. We stand warned by serious and credible scientists across the world that time is short and the dangers are great. The most relevant question now is whether our own government is equal to the challenge.

There's two ways of working in Washington, ... One is to go along and get along. The other is to stand up for what you believe in.

I asked that I not be considered for vice president of the United States.