Could taxing bets on Broncos, Rockies games help fix Colorado’s roads? Walker Stapleton thinks so Anna Staver, The Denver Post · September 17, 2018 at 7:13 pm A tax levied on people betting on the Rockies or the Broncos might be the way to pay for more roads and bridges, according to Republican gubernatorial candidate Walker Stapleton. “Sports gambling is coming to Colorado,” Stapleton, the state treasurer, told an audience of real estate investors Saturday. “I think we should assess a tax on people placing a bet and use that to build up our roads and bridges.” However, whether Stapleton supports legalizing online gambling isn’t clear. Asked that question Monday, Stapleton spokesman Jerrod Dobkin reiterated Stapleton’s message to Investment Community of the Rockies’ conference in Denver.