Original sentence: Cheney also served as ranking minority member of the Congressional committee investigating Iran-Contra - a scandal involving members of the Reagan Administration who helped to illegally sell arms to Iran, and then used the proceeds to fund, also illegally, the Contras, a guerrilla militia in Nicaragua resisting the elected Sandinista government
Edited sentence: Cheney also served as ranking minority member of the Congressional committee investigating Iran-Contra - a scandal involving members of the Reagan Administration who helped to illegally sell arms to Iran, and then used the proceeds to fund, also illegally, the Contras, a guerrilla militia in Nicaragua resisting the Communist dictatorship of the Sandinista regime