I’ve often said that global climate change is an issue where no one has the luxury of being “half-pregnant.” You either are or you aren’t. And so it is with climate change. You either understand and accept the science – or you don’t. Folks this isn’t a cafeteria where you can pick and choose and accept the science that tells us what is happening, but then reject the science that warns us what will happen.

I know that our country is strongest when we lead the world, when we lead strong alliances. And that's the way Eisenhower and Reagan and Kennedy and others did it.

America must always be the world's paramount military power. But we can magnify our power through alliances.

If Russia is there [in Syria] alone fighting them [ISIL], guess what? Russia becomes the target and Russia starts seeing - who knows - MANPADs will find their way in there, airplanes will fall out of the sky. They will become vilified. They'll become the new magnet, together with Assad, for the jihadis.

At every step of the way, George W. Bush has put the narrow interests of the few ahead of the interests of most Americans.

I've met foreign leaders who can't go out and say this publicly, but boy, they look at you and say, you've got to win this, you've got to beat this guy, we need a new policy, things like that.

We need to guarantee equal rights and civil rights and say that, here in America, workers have the right to organize - women have the right to choose - and justice belongs to everyone regardless of race or gender or sexual orientation.