The former president and once-again-future president, who are historically something less than besties, chatted it up before the service began. (Michelle Obama was not in attendance.)

Trump and Obama laughing together may have shocked viewers and funeralgoers amid their tense relationship for over a decade.

George W. Bush walked past Donald Trump and gave Barack Obama a tap on the belly as he arrived at his seat for Jimmy Carter’s funeral service on Thursday. A two-second video of the interaction between the former presidents went viral,

Trump took the opportunity to crack a few jokes to entertain Obama at Jimmy Carter's funeral and the exchange has the internet talking.

President-elect Trump said he “didn’t realize” how friendly he and former President Barack Obama appeared to be on camera. President-elect

Donald Trump shook hands with Mike Pence at Jimmy Carter's state funeral -- a notable exchange as the two men have not interacted publicly in years.

“Former First Lady Michelle Obama is not in attendance at President Carter’s National Funeral Service," according to the statement from spokesperson Crystal Carson. "Mrs. Obama sends her thoughts and prayers to the Carter family, and everyone who loved and learned from the remarkable former President.”

Leaders of American government, including five living presidents, attended Jimmy Carter's formal state funeral in Washington on Thursday. But where was former first lady Michelle Obama?

President-elect Donald Trump spoke about the now-viral exchange he had with former President Barack Obama at Jimmy Carter's memorial service in D.C.

Trump is obviously no fan of Biden, but Obama and his veep also have a famously complex relationship, only made more so after Obama helped nudge Biden to quit the presidential race last summer. Surely Obama feels some frustration that Biden fumbled a possibly winnable race; maybe he couldn’t help spill to his sworn enemy?

President-elect Donald Trump and former President Barack Obama were caught on camera sharing a laugh as they attended Jimmy Carter's funeral at the National Cathedral in Washington, D.C. After the clip between the two political rivals went viral on social media,