Barack Obama: “I think this is indicative of the remarkable progress that's taken place in the relationship between our two countries…”

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.

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.

helped lead some of the most significant movements for change in human history

The success of this experiment was never a given.