Barack Obama: “We must turn to the critical work of implementing and verifying this deal so that Iran cannot pursue a nuclear weapon.”

We designed the center not to be some lifeless mausoleum.

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

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

In forming our union, the founders fell terribly short of the Declaration's promise, leaving slavery intact, allowing states to restrict the franchise to white men who owned property.