Possible Clues:

• MoveOn, e.g
• ___ animal (punny description of a donkey or elephant?)
• Ms. ___-Man (pellet-chomping arcade character)
• Campaign fund-raising letters
• D.C. lobbying group
• Super group?: Abbr
• "Super" org
• Soft-money source
• One may be Super, at election time
• American Crossroads, e.g