Karl Rove is correct. Obama won by shrinking the battlefield.
shrinking because too many fool Republicans sat on the sidelines rather than go out and vote...
Romney and company lost because they fail to see (or agree with) what is going on. The fundamental problem is this. When Republicans allow the government to grow they shrink their electorate. The left will go with the authentic big government candidate every time. No matter how far left they go they will never be the choice of the left. They will only alienate their base.