What is the primary job/power of congress?

Both the Senate and the House of Representatives make up the Congress, though each has different duties and responsibilities there is always an overlap in responsibility through the Joint committees. The most important duty of the Congress is legislation. Once the bills have been passed they have to be signed by the president within ten days; otherwise, they become law automatically. The congress also has the duty of maintaining national defense and therefore has the exclusive power to declare war.

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(b) britain had a much larger navy than the u.s.

(d) the u.s. had a small army compared to britain.

an interest group is an organization whose members share common concerns, and try to influence government policies that impact those concerns. elected officials frequently complain about the influence of "special interests" on american politics.