Federal jurisdiction (United States)
Legislative Branch
One aspect of federal jurisdiction is the extent of legislative power. Under the Constitution, Congress has power to legislate only in the areas that are delegated to it. Under clause 17 Article I Section 8 of the Constitution however, Congress has power to "exercise exclusive Legislation in all cases whatsoever" over the federal district (Washington, D.C.) and other territory ceded to the federal government by the states, such as for military installations.
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