NEW : one former governor forgives omission , One does not . Ca n't understand Civil War without understanding of slavery , president says . Virginia governor criticized for omitting slavery in proclamation . Gov . Obama was referring to Virginia Gov . Marsh designated April as the Democratic National Committee .
NEW : one former governor forgives omission , One does not . Ca n't understand Civil War without understanding of slavery , president says . Virginia governor criticized for omitting slavery in proclamation . Gov . Marsh designated April as the Democratic National Committee .