The Gubernatorial Blue State Blues

If there's any safe territory for the Democratic nominee next year, it should be in such blue-state bastions as California, Massachusetts, Maryland, Hawaii, New York, Rhode Island, Connecticut and Minnesota.

So can anyone explain why all of these states have Republican governors?  Is it simply that all politics is local?  Or are Democrats systematically failing to articulate a vision, or attract candidates, that can appeal even to their own most faithful voters?

Meanwhile, Democrats govern the blood-red GOP strangleholds of Indiana, Kansas, Mississippi, Oklahoma, Virginia and Wyoming.  Those who see a stark red-blue cultural divide in America have some explaining to do.