Describe the 19th century presidential republic in the United States.

The 19th century presidential republic of the United States is characterized by such features as the further improvement of the basic principles of democracy, rights and freedoms of the population. The role of parliamentary control over presidential power is growing, and the powers of the parliament itself are expanding. A characteristic feature can be considered a two-party system, when two large parties begin to predominate in politics, which regularly replace each other.