Joe Biden joins Kamala Harris for first joint rally since stepping aside

In a public display of teamwork, US President Joe Biden and Kamala Harris have campaigned together for the first time since she replaced him as candidate and revived Democratic election hopes.

Seeking to attract voters in the key battleground state of Pennsylvania, the pair met union members in Pittsburg before standing side-by-side to speak to about 600 supporters.

Biden repeatedly name-checked Vice-President Harris, who is in a close race to beat Donald Trump to the White House on November 5.

“We have made a lot of progress, and Kamala and I are going to build on that progress, and she’s going to build on it,” Biden said.

“I’ll be on the sidelines, but I’ll do everything I can to help.”