I think there is broad confusion as to the concept of the Insurrection Act. It is US Federal Law. It gives the Executive power to call to action state milias (National Guard) to enforce Federal law where it is otherwise difficult to enforce because of rebellion (insurrection). That the National Guard has descsended upon DC suggests these powers are in fact currently employed. What we don't have a great sense for is for what purpose they were called in - that is heavily obfuscated in the press.