WASHINGTON: 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 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. They “will discuss building on the progress we’ve made and their vision for an America that is stronger together,” it said. 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. The President is keen to protect his legacy by helping a Democrat succeed him amid a deepening partisan standoff in Washington. Biden will then join Clinton for a Democratic Party event next Friday in Scranton, Pennsylvania, where they both have roots, Clinton’s campaign said in a separate statement.