Barack Obama: “One thing we do know is that whatever hateful agenda drove these men to such heinous acts will not, cannot prevail.”

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.

It fortifies you to say that, yes, this has been part of the journey that we’re on.

I am very happy to see a ceasefire. And I’m hopeful that it holds.

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