The casino industry’s largest lobbying group in the U.S. is ramping up its efforts to repeal a 25-year-old federal law that bans sports betting in most states. The American Gaming Association on Monday announced the creation of a coalition involving organizations of attorneys general and police, policymakers and others to advocate for the repeal of the ban that the industry says has fueled the $150 billion illegal sports betting market. “The American Gaming Association believes a perfect storm is aligning and now is the time to repeal a failing law,” Freeman said during the announcement. He cited a recent survey…