Democrats are split on how to deal with Acorn, the liberal "community organizing" group that deployed thousands of get-out-the-vote workers last election. State and city Democratic officials -- who've been contending with its many scandals -- are moving against it. Washington Democrats are still sweeping Acorn abuses under a rug.

On Monday, Nevada officials charged Acorn, its regional director and its Las Vegas field director with submitting thousands of fraudulent voter registration forms last year. Larry Lomax, the registrar...