Difference between single party system and multi party system

A single party system is where a single party has all the power and no opposition or any other party exists. This system is in china where communist party of china is the only party and competition is within the party to select president, prime minister or any other important posts. This is no where close to democracy and people's will is not the supreme.

In a multiparty system, the number of parties is unlimited. Anyone can establish a party if he meets necessary conditions. This is a true of democracy

the united states constitution is the supreme law of the united states. the constitution, originally comprising seven articles, delineates the national frame of government. its first three articles embody the doctrine of the separation of powers, whereby the federal government is divided into three branches: the legislative, consisting of the bicameral congress; the executive, consisting of the president; and the judicial, consisting of the supreme court and other federal courts. articles four, five and six embody concepts of federalism, describing the rights and responsibilities of state governments, the states in relationship to the federal government, and the shared process of constitutional amendment. article seven establishes the procedure subsequently used by the thirteen states to ratify it. it is regarded as the oldest written and codified national constitution in force.