Barack Obama: “Even kids understand this: You're stronger when you stand together.”

Every president here today, as different as we are, has tried our best to uphold the values that John McCain and Mitt Romney believed in no less than I did.

The success of this experiment was never a given.

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

I hope this center will serve as an affirmation of just how special, how precious our democracy truly is.