In cases in which the United States is a party. In cases of admirality and maritime jurisdiction. Appeals to the Supreme Court may be had in all cases of law and equity, with such exceptions and regulations as Congress has made. One or more in each State. Handles claims against the United States, including those referred to it by Congress.
Jurisdiction is that of the United States territorial holdings, as well as the District of Columbia.
Both the House and the Senate together are commonly referred to as Congress. They are elected by a direct vote of the people. Powers of the Senate Confirms or rejects nominations of the President. Ratifies or rejects treaties with Foreign Powers. Elects President pro tempore of the Senate, and it's other officers.