Rhode Island issued a call for proposals for a company to run sports betting at the Twin River casinos, should the U.S. Supreme Court rule to allow it. It was reported that the Rhode Island Lottery is seeking to award the contract in time to start taking wagers in October.Gov. Gina Raimondo has included potential revenue from legalized sports gambling in her nearly $9.4 billion state budget plan. The administration is counting on at least $23.5 million in revenue if sports betting starts Oct. 1.