It was a lawsuit brought by the Garden State that led to the US Supreme Court put the states in charge of their own betting laws in 2018. Las Vegas may be the capital of the gaming world, but New Jersey has made the biggest impact when it comes to promoting the legalization of sports betting across the United States. No surprise that almost every NJ online casino, sportsbook, or poker room is so popular. NJ bets, bonuses, and promotions are famous, and for good reason.