Sharjah 24 – AFP: Joe Biden and Barack Obama got the band back together Tuesday -- at least for the day, with the former president visiting his former vice president in the White House to try and restoke Democratic momentum ahead of midterm elections.

The mood was simultaneously nostalgic, festive and humorous as the old team reunited.

"Welcome back to the White House, man. It feels like the good old days," Biden told his former boss in a packed ceremonial East Room, where they entered together to huge cheers from staff and members of Congress.

For Obama, it was the first time he's stepped into the hallowed corridors and historic rooms since he left five years ago, handing power to Donald Trump and ushering in a period of political turmoil unprecedented in the modern US era.

"Vice President Biden," Obama began on taking the microphone, before correcting himself to laughter, saying "that was a joke."

Biden prolonged the quip by introducing himself as "Barack Obama's vice president."

But for Biden, who served two terms as deputy to the first Black president before coming out of retirement to deny Trump a second term, it was a hugely poignant moment.