Barack Obama: “It is time to build an American infrastructure for the 21st century.”

a belief that our military and law enforcement owe allegiance not to any president or political party, but to the people and our constitution … a belief in the peaceful transfer of power

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

We designed the center not to be some lifeless mausoleum.

Every president here today, as different as we are, has tried our best to uphold the values that John McCain and Mitt Romney believed in no less than I did.