Barack Obama: “It's time to create conditions so that Americans who work hard can gain ground again.”

They're meant to remind us of who we can be, to remind us of what's possible, so we can forge ahead.

Your task is not to impose litmus tests.

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…

For almost four decades, Nancy Pelosi served the American people and worked to make our country better.