Read more Tulalip Casino will open first sportsbook in Washington Ap. These agreements are amendments to the state-tribe gaming compacts covering 22 casinos. The Washington State Gambling Commission has formally approved sports betting agreements with 15 state tribes. Read more Which Washington casinos will operate sportsbooks? J. Approval is pending for seven more tribes and expected with the next few days.
Department of Interior has granted final approval for sports betting to nine Washington tribes. News Headlines Washington State Sports Betting Update Septem.
