That would be the Chamber of Commerce.
The United States Chamber of Commerce was established in 1912 and it is the largest and broadest trade association in the United States. The Chamber of Commerce can be classified as lobbying group which is oriented towards business and as such is the largest lobbying group in the United States. They usually fund the Republican Party.
(Isolation ) I think that’s the answer your looking for ??!!
Answer:
Beginning in 1781, the government of the United States operated under the Articles of Confederation. The Articles created a unicameral legislature, called Congress, without a separate executive and judicial branch The Legislative Branch. Established by Article I of the Constitution, the Legislative Branch consists of the House of Representatives and the Senate, which together form the United States Congress. ... The Senate is composed of 100 Senators, 2 for each state.