( January 30, 2025, 2:31 PM EST) -- DES MOINES, Iowa — The Iowa Department of Revenue and its director on Jan. 29 filed a brief in Iowa federal court opposing a motion by a vaping advocacy association and five businesses to preliminarily enjoin the state’s new law regulating sales of e-cigarettes from going into effect next week, arguing that the law is proper under the state’s police powers and denying that synthetic nicotine vapes will be treated unequally under the law....