I am not a great fan of the payroll tax holiday because I'm nervous about what it does to the future of Social Security.

It means joining with allies to deploy renewable energy technologies -- both at home and around the world -- to confront the very real and present danger of potentially irreversible climate change.

We have two and half million individual campaign contributions, more than any campaign in history.

In fact, climate change is directly related to the growth of terrorism.

I come from a state that has virtually no gun control. And yet, at political peril, I voted for an instant background check, which I want to see strengthened and expanded. I voted to ban certain types of assault weapons which are designed only to kill people.

I think the immediate thing is we stand up to protect those people who are in trouble.

I congratulate Secretary [Hillary] Clinton on her victory. But, I think, for us, that is about as bad as it's going to get.