Supreme Court case clearing the way for all 50 states to legalize sports betting if they choose. The wagers came a month after New Jersey won a U.S. Murphy plunked his money down at a counter inside Monmouth Park, a horse racing track in Oceanport, near the Jersey shore. Phil Murphy kicked off a new era of gambling Thursday in the state that led the charge for the entire nation to bet on sports legally, placing $20 bets on Germany to win the World Cup and the New Jersey Devils to win the Stanley Cup next season. NEW JERSEY (WABC) - Gamblers in New Jersey can now bet on sports, thanks to legislation the governor signed Monday that legalized a pastime that has long lived in the shadows of organized crime and shady offshore operators.