A chorus of Washington, D.C. Democrats are calling on Mayor Vincent Gray to resign amid allegations his campaign engaged in “underhanded deeds” to win his race against incumbent Mayor Adrian Fenty in 2010. The Washington Times reports : “Three D.C. Council members called on embattled Mayor Vincent C. Gray to resign Wednesday, just hours after he defended his integrity in his first public comments since federal prosecutors outlined a politically damaging ‘shadow’ effort by members of his 2010 campaign. “David A. Catania, Mary M. Cheh and Muriel Bowser became the first city leaders to argue that Mr. Gray is no...