<Ul> <Li> Amendments XI--XXVII </Li> <Li> Unratified Amendments </Li> </Ul> <Li> Amendments XI--XXVII </Li> <Tr> <Td> <Ul> <Li> United States portal </Li> <Li> U.S. Government portal </Li> <Li> Law portal </Li> <Li> Wikipedia book </Li> </Ul> </Td> </Tr> <Ul> <Li> United States portal </Li> <Li> U.S. Government portal </Li> <Li> Law portal </Li> <Li> Wikipedia book </Li> </Ul>

Necessary and proper clause is what type of power