From MSNBC:

A union crusade against America's largest retailer, Wal-Mart, has the potential to not only hurt the company’s balance sheet and alter Americans’ shopping habits, but also to change the course of the 2006 and 2008 campaigns.

Americans cast their votes not just on Election Day but every day, by deciding where to spend their money. And the United Food and Commercial Workers Union is urging Americans to not spend their money at Wal-Mart.

Wal-Mart has successfully fought the union's efforts to organize its workforce.

Now the union has recruited strategists from the 2004 Howard Dean and Wesley Clark campaigns, and they are mounting a crusade that goes beyond the usual union tactics, such as the boycott or shareholder resolution expressing disapproval of a company’s policies.

Paul Blank, who served as political director for the Dean campaign, is running the "Wake-Up Wal-Mart” campaign, and Chris Kofinis, a strategist for the Clark campaign, is the effort's communications adviser.