Barack Obama: “It's time we once again put science at the top of our agenda and worked to restore America's place as the world leader…”

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…

I think when you understand the complexities of America and the contradictions of America, I don’t think it makes you love it less. I think it makes you love it more.

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

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