I am sympathetic to developing countries’ concerns: because of our emissions it’s their crops that will disappear; because of our inaction, it’s their fields that turn to desert...

We cannot continue to see the Middle East in the context of 9/11. We must see it in the context of 2011.

Each and every child in this country is valuable because they are our future as a society. We cannot afford to lose a single child to ill-health, under-education, abuse, addiction, jail, or gun violence. America's highest goal should be for every child to grow up to be a successful young adult -- healthy, educated, free, secure, and a good citizen.

I get always a little uptight when I hear politicians say how exceptional America is.

If you don't believe ... Saddam Hussein is a threat with nuclear weapons, then you shouldn't vote for me.

A fundamental premise of politics is we can make this work if people just never figure it out.

Think about this: terrorism, epidemics, poverty, the proliferation of weapons of mass destruction-all challenges that know no borders-the reality is that climate change ranks right up there with every single one of them.