Can states win tax revenue from sports betting?

As the NFL season enters its third week and basketball and hockey fans prepare for theirs, states like Nevada and New Jersey hope to continue hitting the tax jackpot with a burst of sport begging. But Urban-Brookings Tax Policy Center Research Associate Richard Auxier warns lawmakers that relying on tax revenue could be a bust. He joins Yahoo Finance's Adam Shapiro, Pras Subramanian, and Brian Cheung to discuss.