Barack Obama: “But we're not going to win without your help.”

They're meant to remind us of who we can be, to remind us of what's possible, so we can forge ahead.

It fortifies you to say that, yes, this has been part of the journey that we’re on.

Now the ball’s in your court, Iowa.

I think when you understand the complexities of America and the contradictions of America, I don’t think it makes you love it less. I think it makes you love it more.