With just over two weeks left until Virginia’s gubernatorial election, Democrat Creigh Deeds is left with a narrow path to victory, one that hinges on energizing key demographic groups and the durability of the Old Dominion’s new politics. Even as Deeds trails Republican Bob McDonnell by eight and nine points in two of the most recent polls, his campaign and other analysts can still envision a comeback made possible in no small part because of the state’s political turn leftward. Virginia’s Washington, D.C. suburbs, where one-third of voters reside, have gone from being a battleground region to a Democratic bulwark...