Before Tuesday's vote in Wisconsin there was already evidence that Democrats nationally didn't have quite the ground game they brag about. Witness the fact that they are so far losing the voter-registration war in the eight battleground or "swing" states (as recognized by the media and the two campaigns) that enroll voters by party.
In Florida and Iowa, Democratic registrations are down from their 2010 levels while Republican numbers are up. For example, nearly 29,000 Democrats have disappeared from the Iowa registration rolls since January 2011, while about 10,000 Republicans have been added.
In Arizona (which Team Obama keeps saying it intends to make a battleground) and Pennsylvania, both parties have lost ground—but Democrats have lost more. In Arizona, Democrats are down 58,000 since the end of 2010; the Republicans are down 9,500. And there are now 176,000 fewer Democrats registered in Pennsylvania than in November 2010, while GOP registrations have dropped by 62,000.
In Colorado, Nevada, New Mexico and North Carolina, both parties increased registrations—but Republicans added more. For example, in North Carolina, there are 17,500 new Democrats registered since January 2011 versus 49,500 more Republicans. This in a state Mr. Obama won by just 14,177 votes in 2008. (All registration numbers come from state websites.)