Barack Obama: “Sandy Berger was one of our Nation's foremost national security leaders.”

Never talks that way when they are in the same room.

It shows me somebody who’s not focused on the American people and the job they’re supposed to do.

While we are non-partisan, we are not value-neutral. We have a point of view.

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…