Yes they will, or all women in the US will lose the right to a legal abortion.
don't count on anything. if voters perceive that he 'robbed' the nomination, or he won't stay true to his vote. McCain's greatest virtual is 'always tell the truth'. And one of Obama problem is he doesn't seem to be consistence with his truth all the time.
DEM voters might vote for McCain, and some might be absent from general election altogether.
Already if DEM don't seat FL & MI, it's high chance that GOP will win these 2 states in GE.