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.”

All five living U.S. presidents are attending Jimmy Carter's funeral at the National Cathedral in Washington, D.C., on Thursday, a rare occurrence that marks the first time the leaders have gathered publicly since 2018.