Kuala Lampur, July 27 -- The United Nations headquarters is in New York City.

New York City is in New York.

New York is a state in the United States of America (USA).

The USA is a federation.

A federation, from which federalism gets its name, is when authority is divided between a central government and local governments. In a federation, there is the sharing or mixing of power between a federal government and the state governments.

Read here on what a federation is.

As a system of government, federalism in the USA is based on the US Constitution. Power is shared between the 50 state governments and the federal government in Washington, DC.

The federal government has certain powers that are given to it by the Constitution and the 5...