As I read it, the Posse Comitatus Act limits the scope of the Insurrection Act. Also: "The general purpose of the Insurrection Act is to limit presidential pow

As I read it, the Posse Comitatus Act limits the scope of the Insurrection Act. Also: "The general purpose of the Insurrection Act is to limit presidential power, relying on state and local governments for initial response in the event of insurrection. The Posse Comitatus Act prohibits the use of the United States Army and Air Force (which has also been extended by executive direction to the Navy) for routine law enforcement."