On May 14, 2018, the United States Supreme Court eliminated the largest federal obstacle to the expansion of sports betting across the nation by finding the federal law banning sports betting in all but four states unconstitutional. The law at issue, the Professional and Amateur Sports Protection Act (PASPA), arose in the 1990s during a period of general gaming expansion across the country. When all signs pointed to the continuation of this expansion in the sports betting arena, several parties, including professional sports leagues, pushed for the introduction of PASPA. More.