Democrats got the lowest share of the white vote in this midterm election than in any congressional election since World War II, losing key races in Pennsylvania, Illinois, and Michigan, and every contested election in Ohio, which spells trouble for President Obama’s reelection. No Democrat can win the White House without these Midwestern swing states, and they are all decimated by job losses that Obama has offered no road map to recover.Soul-searching is under way at the White House, but so far it looks pretty sterile.