The Professional and Amateur Sports Protection Act (PASPA) of 1992 made sports betting illegal nationwide except for states that had approved sports wagering (Nevada, Oregon, Montana, Delaware). PASPA faced opposition and some argued it was unconstitutional. In recent years, New Jersey has challenged PASPA in court to legalize sports betting as a means to generate tax revenue, but they have been unsuccessful so far. The debate around PASPA continues as states seek greater ability to legalize and profit from sports gambling.