Steve DelBianco, president and CEO of NetChoice, an e-commerce trade association, said the Senate proposal would almost certainly bring lawsuits from internet platforms, as well as possible congressional scrutiny over the issue of retroactivity. States have generally steered clear from retroactivity following the U.S. Supreme Court’s South Dakota v. Wayfairdecision, which dozens of states have used as the foundation to expand sales tax on out-of-state retailers—a move Ohio is also considering in the Senate budget bill.