A dispute is smoldering over cigarettes that consumers can roll at tobacco shops, pitting lobbyists from Patton Boggs and Arent Fox against each other as they seek to win the backing of Washington policymakers.

Patton represents discount cigarette manufacturer Liggett Vector Brands LLC, which supports U.S. government efforts to eliminate discrepancies that can subject cigarettes rolled by consumers in a store to a lower federal excise tax rate than premanufactured cigarettes. Arent is advocating for roll-your-own cigarette device manufacturer RYO Machine LLC, which is fighting to preserve the current tobacco tax structure.