Barack Obama: “We can and we must do better.”

a belief that our military and law enforcement owe allegiance not to any president or political party, but to the people and our constitution … a belief in the peaceful transfer of power

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

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.