It is absolutely true that the Congress has the power over the president to set the foreign policy agenda. The Congress was formed with the idea of giving a committee the power to carry out numerous legislative functions of the government. The law makers of the United States understood the importance of having a representative body in regards to the lawmaking power of the country. Congress in the United States is actually the collective name given to the House of Representatives and the Senate. The Constitution of the United states have details regarding the structure of the Congress.