Obama and Biden join Clinton on campaign trail next week

US President Barack Obama will join Democratic White House hopeful Hillary Clinton on the campaign trail for the first time next week, days before Vice President Joe Biden also stumps with her, Clinton aides announced on Thursday.

Obama is set to join Clinton in Charlotte, North Carolina on Tuesday for his debut appearance on the 2016 campaign trail, the Clinton campaign said in a statement.

Their first joint campaign event had been scheduled for June 15 in Wisconsin, days after Obama endorsed Clinton, but was postponed due to the mass shooting at a gay nightclub in Orlando, Florida.

Obama is expected to campaign heavily for Clinton, his former bitter rival in the 2008 Democratic primaries before she worked closely with him as secretary of state during his first term.