WASHINGTON ― The current and former living U.S. presidents said goodbye to Jimmy Carter on Thursday, and in the process once again highlighted the contrast between former and soon-to-be President Donald Trump and all the others.

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.

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.)