Barack Obama: “It is wonderful to be back in the Big Apple.”

Now the ball’s in your court, Iowa.

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…

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