Barack Obama: “I think our goal is to have a comprehensive relationship with Iraq.”

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.

That's what I hope every visitor to this center takes away from their experience.

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

Your task is not to impose litmus tests.