President Joe Biden, former presidents and other dignitaries are gathering at Washington National Cathedral in Washington, D.C., to honor former President Jimmy Carter.

President Joe Biden eulogized former president Jimmy Carter on Thursday as a man who “taught me the strength of character” and refused to let personal ambition or politics erode his inherent goodness, using one of his final speeches as president to issue an indirect rebuke to the politics of today.

All five living presidents will be present to honor the late former President Jimmy Carter during his funeral service at the National Cathedral in Washington, D.C. on Thursday morning.

The final day of Jimmy Carter's state funeral is Thursday as his life is celebrated in Washington. Follow for updates from D.C. to Plains.

President Joe Biden spoke of his friendship with Jimmy Carter that started in 1974 when Biden was the first sitting Democratic senator to endorse the late president.

The pair paid tribute to former President Carter at his state funeral on Thursday, performing John Lennon's "Imagine."

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.

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?

Jimmy Carter, the 39th U.S. President, is being honored with the pageantry of a state funeral in the nation's capital, followed by a second service and burial in his tiny Georgia hometown that launched a Depression-era farm boy to the world stage.

We have an obligation to give hate no safe harbor,” Biden said, also noting the importance of standing up to “abuse in power.”

Jimmy Carter's funeral was covered by all the networks, though Fox News cut away to LA fire coverage. Was Joe Biden's eulogy aimed at Donald Trump?