Barack Obama: “I'm concerned about this.”

It's a way to honor her trailblazing leadership, and inspire visitors to follow in her footsteps.

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.

I think when you understand the complexities of America and the contradictions of America, I don’t think it makes you love it less. I think it makes you love it more.