The fast-growing industry is also far-reaching: its advertisements reach into most U.S. When Sunday’s anniversary of the court ruling in a case brought by New Jersey arrives, two-thirds of the country will offer legal sports betting, with additional states likely to join in coming months or years. Supreme Court cleared the way for all 50 states to offer it, and the industry shows few signs of slowing despite some recent scandals that have put a spotlight on wagering safeguards. (AP) - Americans have bet over $220 billion on sports with legal gambling outlets in the five years since the U.S.