With the midterm elections November 7, organized labor has been gearing up for its biggest political blitz ever. Since being rocked by internal divisions last year and failing to unseat President Bush in 2004, labor leaders have been eager to prove that unions still matter and that the labor ground game can deliver votes for the Democratic Party. Political observers believe that in some close races, labor could help swing this month’s midterm elections—an outcome the beleaugured union movement desperately desires. Although labor’s diminished power would probably not overcome a larger change in the national political currents, those currents seem...