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?

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 paid his respects to former President Jimmy Carter on Wednesday at the Capitol Rotunda.

There were times when Jimmy Carter annoyed his successors in the White House, Democrat and Republican. He never seemed to mind.

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.

Kamala Harris ignored Donald Trump at Jimmy Carter’s state funeral on Thursday, as five presidents gathered to mourn their predecessor.

When Joe Biden eulogized Jimmy Carter today in the majestic surroundings of Washington National Cathedral today, he said of his predecessor, “Many think he was from a bygone era, but he saw into the future.

1:47 p.m. Carter’s casket and family departed Joint Base Andrews on Air Force One en route to Carter’s hometown of Plains, Georgia, for a private service and burial. 12:15 p.m. Second Gentleman Doug Emhoff shook hands with President-elect Donald Trump after the funeral.

Relationships rooted in politics are always complicated, but this one is a knotted web of loyalty, competition, ambition and loss.

Donald Trump and Mike Pence briefly greeted each other and shook hands at Jimmy Carter’s funeral service on Thursday.

The handshake happened almost four years to the day when Trump supporters called for Pence's execution during the Jan. 6, 2021, Capitol attack.