The federal prohibition on sports betting turns 25 this year, but Americans aren't expected to have any trouble getting action on Super Bowl LI.
Americans will stake an estimated $4.7 billion on Sunday's game between the New England Patriots and underdog Atlanta Falcons, according to numbers released Tuesday by the American Gaming Association. The $4.7 billion is as much as is believed to have been sold on online retailer Amazon from Thanksgiving through Cyber Monday in 2016.
The AGA estimates that 97 percent of the money wagered on the Super Bowl in the U.