This is the absolute power of a government within its own territory.

Sovereignty, is the right answer.

Explanation:

The term sovereignty can be described as "each state has absolute and supreme power within its territory and can itself chose its domestic and foreign policies". The sovereign states entertain full authority over their states without any external interference. In the context of political theory, this term is used to designate a supreme authority over some polity.

answer; code of federal regulations;

answer; majority;