Barack Obama: “Climate change is no longer some far-off problem; it is happening here, it is happening now.”

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

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

The success of this experiment was never a given.

She knew she was going to mess me up, and she did it anyway.