Barack Obama: “Today I signed a historic agreement between the United States and Afghanistan that defines a new kind of relationship…”

It was nevertheless important that we all play a part in assuring that our elected officials are accountable.

That was fantastic. I was a little tall for it.

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.