The Club for Growth, the free-market advocacy group headed until recently by Pat Toomey, is again going to bat for him. The group has launched its second state-wide ad buy in Pennsylvania with a 30-second spot emphasizing, “Joe Sestak served honorably in the Navy. His service in Congress is the problem.”

The ad goes on to highlight his stimulus support, unemployment numbers, the mortgage bailout, the deficit, and his cap-and-trade energy tax stance.

By recognizing Sestak’s service as a vice-admiral in the Navy, the ad works to blunt Sestak’s own campaign ad, “Service,” which is almost entirely focused on highlighting his Naval career rather than his more recent (and relevant) congressional career.

Joe Sestak’s “Service” ad: