Sovereignty refers to the ultimate authority and power of a state to govern itself without external interference. It is a key principle of international law and politics. However, sovereignty does not imply the supremacy of political parties.
Political parties are groups of individuals who come together to contest elections and hold power in government. While they play an important role in the political process, they are not the same as the state itself. The state is the highest authority in a country, with unlimited powers to make and enforce laws, and political parties are subject to the authority of the state.
In summary, sovereignty implies the highest authority in a state, political independence, and unlimited powers of a state to make and enforce laws. It does not imply the supremacy of political parties, which are subject to the authority of the state.