WASHINGTON (AP) — As they filed into the front pews at Washington National Cathedral, wearing dark suits and mostly solemn faces, five current and former presidents came together for Jimmy Carter’s funeral. For a service that stretched more than an hour, the feuding, grievances and enmity that had marked their rival campaigns and divergent politics gave way to a reverential moment for one of their own.

Barack Obama and Donald Trump, the first two of the group to take their seats Thursday, shook hands and chatted at length. Trump, the former president who will retake the Oval Office in 11 days, leaned in and listened intently to his predecessor, notwithstanding the political chasm between them. At times, the two flashed smiles.

Obama, who attended without his wife, Michelle, shared a second-row pew with former presidents George W. Bush and Bill Clinton, along with their spouses. President Joe Biden and first lady Jill Biden arrived last and sat in the pew just in front of them.

Members of the exclusive presidents’ club were on their best behavior. Bonded by the presidency, they rarely criticize one another or the White House’s current occupant — though Trump has flouted those rules frequently. He has both praised and criticized Carter in recent days, and he complained that flags will still be at half-staff to honor the deceased president during his inauguration.

In one seemingly chilly moment, Trump looked up when Vice President Kamala Harris — whom he defeated in November’s hard-fought election — entered the cathedral, but he didn’t move to greet her as she and husband Doug Emhoff took seats directly in front of him and Melania Trump. Nor did Harris acknowledge him.

After the service, Emhoff made a point to turn around and shake hands with Trump.