The Vice President of the United States is the ex officio President of the Senate, with authority to preside over the Senate's sessions, although he can vote only to break a tie. For decades the task of presiding over Senate sessions was one of the vice president's principal duties.
However, because they ride atop the water, rather than cutting through it as other hulls do, flat-bottom boats are usually limited in the size of their motors. The flat surface may also give a spine-jarring ride in anything less than calm weather.
Moderate displacement sailboats are a natural development of the heavy displacement hull types, with a moderate length fin keel and a separate rudder which is either transom hung or supported on a skeg. On GRP boats, the fin keel may be part of the hull moulding and have its ballast encapsulated within.