The United States Senate: "The Vice President of the United States (President of the Senate)"
Explore this webpage to learn about the history of the Vice Presidency. The Vice Presidency is often the least understood of all constitutional offices, but some remarkable men have held the position. The Vice President constitutionally holds the Presidency of the Senate. This article explains the origins and duties of the Vice Presidential office, as well as the evolution of the office from its founding to the modern Vice Presidency.
Click http://www.senate.gov/artandhistory/history/common/briefing/Vice_President.htm link to open resource.