A new frontier and legitimacy for sports betting

In this March 15, 2018 photo, people watch coverage of the first round of the NCAA college basketball tournament at the Westgate Superbook sports book in Las Vegas. The Supreme Court has struck down a federal law that bars gambling on football, basketball, baseball and other sports in most states, giving states the go-ahead to legalize betting on sports. (AP Photo/John Locher)

LAS VEGAS — Jimmy Vaccaro has seen just about everything in 40 years of taking money behind the counter at sports books in this gambling city.