Obama will publicly support Joe Biden for US president

Obama will support his former deputy chairman in a video conference, showing why he believes Biden is the necessary candidate at this point in America's crisis, says one person close to the former president, broadcasts news.net.

CNN writes that this marks Obama's first public resurface in the political arena.

Obama, however, said in November he had talked to all democratic candidates during the campaign, often giving them advice before declaring their offer and after they leave.

Days ago, the independent candidate for president of the United States, Bernie Sanders, gave up the presidential candidacy.