Nevada was the only state with legal casino gambling. Resorts Atlantic City was the first casino to open in 1978. In 2006, an impasse over the state's budget between then-governor Jon Corzine and the state legislature resulted in a lengthy state government shutdown at the height of the summer tourist season; this caused the temporary closure of all of Atlantic City's casinos (as well as racetracks throughout the state) because New Jersey law states that gambling establishments can not legally operate without government oversight from the New Jersey Casino Control Commission. The closures cost the state an estimated $1.3 million in casino revenues in addition to the loss of state taxes collected on casino employee wages. As of early 2021, Atlantic City's gaming revenue has still not returned to its 2006 peak. Arguably, the temporary shutdown of Atlantic City's casinos in 2006 encouraged neighboring states to continue developing their own gaming industries. Sports betting In January 2012, New Jersey Governor Chris Christie signed legislation allowing sports betting in New Jersey after it was approved by a 2-to-1 margin in a voter referendum held in November 2011. The law permits any of the state's 12 casinos and 4 racetracks to offer gambling on professional and college sports, but prohibits them from accepting bets on college events played in New Jersey, or out-of-state games involving New Jersey college teams. The New Jersey Division of Gaming Enforcement subsequently issued regulations for sports betting. The National Collegiate Athletic Association (NCAA), the National Basketball Association (NBA), the National Football League (NFL), the National Hockey League, and Major League Baseball filed a federal lawsuit against New Jersey to prevent sports betting, based on the Professional and Amateur Sports Protection Act of 1992 which banned sports betting in all but four states. In February 2013, United States District Court judge Michael A. Shipp ruled in favor of the athletic leagues, and barred New Jersey from issuing sports betting licenses. The court ruled that under the Commerce Clause of the United States Constitution, the regulation of gambling and the granting of a grandfather clause to four states is within Congress's power. In September 2013, a three-judge panel from the 3rd Circuit Court of Appeals voted 2-1 to uphold Shipp's decision. Christie said he will appeal the case to the United States Supreme Court. In 2014, New Jersey challenged the Professional and Amateur Sports Protection Act of 1992 (PASPA)