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.
Some jon boat s have a flat bottom and a flat hull, and others have a v-shape. Anglers can use paddles to control the boat or mount a small motor on it. Because of their size, they make for easier fishing in tight areas. Manufacturers put their own variations into each boat.