With the US election less than four months away, the Democrats remain in a huddle over presumed nominee Joe Biden and now former President Barack Obama has privately expressed concern regarding the candidacy of Biden. Speaker Emerita Nancy Pelosi has also warned the President that if he doesn’t reverse his decision to contest, there are high chances that Democrats would lose the chance to regain control of the House. Obama, who has supported Biden in the past, has voiced his concern regarding President Biden’s chances of winning the election against…