At the urging of the Obama White House, former President Bill Clinton asked Rep. Joe Sestak whether he would abandon his plans to challenge Sen. Arlen Specter in a Pennsylvania Democratic primary if given an unpaid, advisory position, according to a White House counsel report issued Friday morning. Clinton made the inquiries on behalf of Chief of Staff Rahm Emanuel last summer, as Sestak began his challenge of Specter, a former Republican who had switched parties, White House Counsel Bob Bauer wrote. Obama publicly backed Specter's reelection bid over Sestak, who remained in the primary and defeated the veteran senator...