Barack Obama: “Russia's decision to send troops into Crimea has rightly drawn global condemnation.”

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

The success of this experiment was never a given.

I hope this center will serve as an affirmation of just how special, how precious our democracy truly is.

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.