While everyone in Washington is suddenly pretending they’ve hardly ever heard of ACORN, they might want to pretend they’ve never heard of the SEIU, one of the nation’s largest unions. The Association of Community Organizations for Reform Now and the Service Employees International Union are tight as Heidi Klum and a new pair of jeans. You also don’t talk about either organization without mention of Wade Rathke, co-founder of ACORN and founder of SEIU Local 100 in New Orleans. Rathke, who resigned from ACORN last year as “chief organizer” after it became known that his brother embezzled almost $1 million...