Iowa Electronic Markets are driven only by money.
No emotion.
No bias.
No spin.
Only the profit motive.
Futures contracts on the US House of Representatives in 2006.
They have been a better predictor than any poll.
"Republicans Hold House" has just pulled ahead. 47.5%
"Republicans Lose House" is at 44%
"Republicans Gain Seats" is at 8.5%
http://iemweb.biz.uiowa.edu/graphs/graph_HOUSE06.cfm