The return of Podesta is somewhat of a surprise after a Politico report last month that he and former Obama campaign manager Jim Messina were in serious discussions to reboot Priorities USA, the pro-Obama political action committee that aided the president’s reelection effort.President Obama is bringing former Clinton chief of staff John Podesta back to the White House for a year-long stint as a top adviser, an administration official confirmed Monday. Podesta, a longtime Democratic operative who led President Obama’s transition team, is returning to an embattled White House that has seen the president’s popularity hammered by the botched rollout...