Why did truman believe greece needed american aid in 1947?

Truman was afraid in 1947 that Greece was fall into the hands of the communists and would then be in the Soviet Union's sphere of influence. So, in order to combat that, Truman sent in military and intelligence advisors to push back communism.

one of the major compromises in the constitutional convention was between the small states and big states. the small states wanted each state to have the same number of representatives in congress. the big states wanted representation based on population.