Barack Obama: “I just feel bad for the president of United States that he's being videotaped in this tiny hotel gym working out and…”

The success of this experiment was never a given.

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

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

Of course, we did not accomplish everything we set out to do. No administration does. Some of the exhibits reflect unfinished business, in some cases, my own shortcomings and mistakes, in some cases because - as a sign I kept on the…