<P> The presiding officer of the Senate is the Vice President of the United States , who is President of the Senate . In the Vice President 's absence , the President Pro Tempore , who is customarily the senior member of the party holding a majority of seats , presides over the Senate . In the early 20th century , the practice of majority and minority parties electing their floor leaders began , although they are not constitutional officers . </P>
<P> The presiding officer of the Senate is the Vice President of the United States , who is President of the Senate . In the Vice President 's absence , the President Pro Tempore , who is customarily the senior member of the party holding a majority of seats , presides over the Senate . In the early 20th century , the practice of majority and minority parties electing their floor leaders began , although they are not constitutional officers . </P>
who leads the senate according to the constitution
who leads the senate according to the constitution
Vice President of the United States
Vice President of the United States