No. This is local government and they are not given that power. The county government system is controlled by local voters.
State, then the Local government.
county
County Government in Major Metropolitan areas especially where city government has merged.
County is local government
The Head of a Municipal Government is typically the Mayor. The head of the county level is typically the Commissioners, the head of the state is the Governor, and the head of the country is the President.
Ireland has county and city councils as local government bodies. The head of a council in Ireland is a mayor.
The head of the local government of the State of Virginia is the Governor. Governor is Terry MacAulffe. The state of Virginia also has elected officials for the city and county locales.
The County Commissioner
Malin Head is county Donegal.
A Mayor is usually the head of a local government such as a town, city or county. "Mayor of US" is meaningless.
A government in which a city ad county government have joined to form a single government is called a consolidated city and county government.
The County Commissioner leads the County government. There can be one or a group of commissioners.
A city/county government have jointed to form a single government is called a consolidated city/county government.
Government of Brevard County was created in 1844.
. . . a consolidated city-county .
brunswick county