With neither president revealing what the pair spoke about, speculation has mounted about the details of their conversation.

Former President Barack Obama attended Jimmy Carter’s state funeral on Thursday without his wife, Michelle Obama, although a spokeswoman for the former first lady said she sent her condolences to the Carter family.

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.)

By now, you've likely seen the video of Donald Trump and Barack Obama chatting at Jimmy Carter's funeral that's been making the rounds. In short, the pair can be seen looking surprisingly chummy sitting next to one another.

George W. Bush's unlikely friendship with the Obamas once again on display on Jan. 9, when the Republican gave Barack Obama a friendly greeting at the state funeral for Jimmy Carter

A rare reunion of the remaining members of the US presidents club at the funeral for 39th President Jimmy Carter. President-elect Donald Trump and his Democratic rival Kamala Harris don’t interact before service starts. From left, President Barack Obama ...

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?

where she had been on an “extended vacation.” Former President Barack Obama was present and seen sharing pleasantries with President-elect Donald Trump ahead of the ceremony.

There was no shortage of awkward moments throughout the service between Karen Pence's dismissal of the Trumps and the Clinton's careful navigation of the pews to intentionally evade the incoming presi

The inauguration was the second gathering of U.S. presidents and their spouses that Michelle Obama has missed in recent weeks.

The entire "Presidents Club" will be at a U.S. inauguration for the first time since President Obama's first inauguration in 2009.