A pair of California cardroom operators have are headed back into court in an attempt to prevent a ballot initiative that would legalize sports gambling and allow roulette and craps at tribal casinos from hitting the November ballot. 

With the California Sports Wagering Regulation and Unlawful Gambling Enforcement Act set to appear on the ballot, two cardrooms – Hollywood Park Casino and Parkwest Casino – announced Monday that they have filed a lawsuit in the Los Angeles County Superior Court with the hope of barring the initiative from going to the voters.