Barack Obama: “His was a big and quintessentially American life, one of patriotism and character, learning and teaching, and a deep and…”

Now the ball’s in your court, Iowa.

Your task is not to impose litmus tests.

There’s no doubt that we are going through a period right now of disruption, polarization.

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