RICHMOND, Va. — Election Day came and went with no clear winner in Virginia’s attorney general race. With nearly all precincts reporting unofficial returns, the contest between two state senators — Republican Mark Obenshain of Harrisonburg and Democrat Mark Herring of Loudoun County — was too close to call. A recount appeared likely. Neither candidate claimed victory or conceded. Obenshain had a 286-vote lead. With 100 percent of the precincts reporting Obenshain had 1,099,422 votes to …