Former President Jimmy Carter's remains were flown from Atlanta to Washington, D.C., on Tuesday, where the nation's top leaders paid tribute to the 39th U.S. president. Carter will lie in state in the U.S. Capitol Rotunda until Thursday to allow the public to pay their respects.

One of the first calls Obama made after U.S. forces killed Osama bin Laden in 2011 was to George W. Bush to spread the word that the mission had been accomplished, said Kate Andersen Brower, author of “Team of Five: The Presidents Club in the Age of Trump.”