[Muammar] Gaddafi probably had more blood on his hands of Americans than anybody else.

I have a difference with Senator [Bernie] Sanders, who promises free college, which, if you look at the fine print, depends really on governors coming up with a lot of the money, which I don't think is a particularly wise bet. And I have a plan to help people pay down their student debt, because I want to unleash the entrepreneurial energy that young people have.

I feel like I have to do the best job I can to basically say, "OK, I understand - you have every right to be angry, but anger is not a plan. Here's what I want to do, and that's why I hope you will support me, because I think it will actually improve the lives of Americans."

When it comes to foreign policy, it is important to remember that politics stops at the water's edge.

Wall Street can never be allowed to threaten main street again. No bank can be too big to fail, no executive too powerful to jail.

Donald Trump first gained political prominence leading the charge for the so-called birthers. He promoted the racist lie that President Obama is not really an American citizen, part of a sustained effort to delegitimize America's first black president.

I think we can compete with high-wage countries, and I believe we should. New jobs and clean energy, not only to fight climate change, which is a serious problem, but to create new opportunities and new businesses.