عنوان مقاله [English]
When grouping political systems of the world, that of U. S. A. is counted as a two-party system. Noticing really, one can find that Republican Party and Democrat party are only two that arrive at power one after another. As we know there are a great number of small parties there, but they have never been able to arrive at political power. American society, therefore, has experienced the powerful appearance of the two party. In the same time, there can be found different socio-political views in each of the two that leads to some inner quarrels in them. Though the parties mentioned apparently seem of opposite in national and international policy, they act on the same fixed principle.