Possible Clues:

• Way-out assessment at election time
• Sex show about Liberals — it predicts the X-rating
• Indicator of who'll get in league after mad exploit
• Outgoing types required to co-operate with this
• Survey used in election night coverage
• It's taken after a vote
• Survey of Election Day voters
• Election predictor
• *Basis of some election predictions
• Exploit unusually large survey of voters