A federal appeals court in Chicago is bringing back a lawsuit challenging a state law to help racetracks that casino companies say former governor Rod Blagojevich signed because he was bribed.  The appellate court reinstated the suit by four casino groups that had been dismissed by a lower court.  The suit cites recordings played at Blagojevich's trial alleging that horse racing executive John Johnston offered Blagojevich campaign a 100-thousand-dollar contribution to get his support for renewing a law that requires casino owners to set aside three-percent of their revenue to subsidize the tracks.

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