Make speeches, offer laws, represent their state in the federal goverment, and fight to become President of the USA.
the vice president of the united states
President of the Senate (The Vice President) Actually no one is 'in charge of' the Senate. If anyone has a responsibility to try to govern the Senate, it's the responsibility of the two...
The vice president, and as of 1/25/2010 it is Joe Biden
vice president
there are 100 us senates. 2 per state