There are folks who will equivocate. They'll say, 'You know, I'm not a scientist.' Well, I'm not either. But the best scientists in the world know that climate change is happening.

A nuclear Iran is a threat to America's national security, and it is a threat to Israel's national security. We cannot afford to have a nuclear arms race in the most volatile region of the world.

He [Barack Obama] talked about a crisises and he was blaming the Republicans on this crisises. It's like me blaming my wife for my drinking. I don't se how this is the Republicans fault.

Gabby Giffords deserves a vote. The families of Newtown deserve a vote. The families of Aurora deserve a vote. The families of Oak Creek, and Tucson, and Blacksburg, and the countless other communities ripped open by gun violence - they deserve a simple vote.

If you don't have a record to run on, you paint your opponent as someone to run from.

One of the gratifying things, I think, about the end of my presidency even though admittedly my successor ran against a lot of what we stood for, is when you look at the individual issues and the progress that we've made on a lot of those issues, we got the support of a pretty decent majority.

I think that when it comes to issues of trade, I think it is important for us to be in favor of trade, but I also think it is important to make sure that we are putting in place the labor standards, the environmental standards, that are going to provide some of a fighting chance for American workers.