WASHINGTON (AP) — Nearly two years out of the White House, former President Barack Obama is facing another political test. To the delight of many Democrats, he’s stepped back into the fray that former presidents often try to avoid, campaigning for Democratic candidates ahead of the midterms and blasting the political culture of the Trump era. He attracted a large, adoring crowd this past week in Ohio and will be in Pennsylvania on Friday campaigning for Democratic Sen. Bob Casey.