Generally the central government has the most power with in descending order; the state; the county and finally city government. During the current pandemic, alot of power has fallen to the individual states. The mayor's have had to deal with the recent riots and protests... unless they activated the National Guard or asked for federal support. The states still in dealing with major crisis are dependent on and subservient to the federal government. For example, activating FEMA for hurricanes or other disasters. A prime example of the national government being in control occurred following 911 when the federal government stepped in and took over all security elements starting with flights and border control.