Who is the president of the senate and when may that person vote?

The Vicepresident of the United States is the president of the Senate. The vice president acts as president of the United States Senate but does not have the right to vote except to resolve ties, as prescribed in Article I of the United States Constitution. To do this, the Vice President must meet the same constitutional requirements as the President to hold the office, ie, must be a US native, at least 35 years old and residing in the country for at least 14 years.