The system isn't working when 12 million people live in hiding, and hundreds of thousands cross our borders illegally each year; when companies hire undocumented immigrants instead of legal citizens to avoid paying overtime or to avoid a union; when communities are terrorized by ICE immigration raids -- when nursing mothers are torn from their babies, when children come home from school to find their parents missing, when people are detained without access to legal counsel. When all that's happening, the system just isn't working.

Few challenges facing America and the world are more urgent than combating climate change. The science is beyond dispute and the facts are clear.

America, our endless blessings bestow an enduring burden. But as Americans, we welcome our responsibility to lead.

American leadership is not simply a matter of going it alone and bearing all of the burden ourselves.

And, you know, I don’t want to have to worry that she is going to get sick as the consequence of having, having her lunch.

You look at something like health care, the Affordable Care Act. And for all the controversy, we now have 20 million people who have health insurance who didn't have it. It's actually proven to be more effective, cheaper than even advocates like me expected.

For more than four decades, the Libyan people have been ruled by a tyrant - Moammar Gaddafi. He has denied his people freedom, exploited their wealth, murdered opponents at home and abroad, and terrorized innocent people around the world - including Americans who were killed by Libyan agents.