Normally it is the Vice President who is ex officio the President of the Senate. But most of the time it is the President Pro Tempore of the majority party who often delegates the power to the newer members of the house.
In response to the answer above ^, Article 1 Section 3 of the Constitution states: The Vice President of the United States shall be President of the Senate, but shall have no Vote, unless they be equally divided.
The Vice President is the president of the Senate.
In the U.S. the current presiding officer is Joseph Biden (the vice president)
There is a presiding officer for each of the legislative houses. The speaker of the House is John Boehner. The presiding officer of the Senate is vice president Joe Biden.
I know one of the titles of the two presiding officers of the Senate. The one I know of is called President pro tempor (temporary presideant). If the Vice President is absent, the Senators choose this presiding officer.
Well that depends on what you mean by presiding, officially or unofficially. Officially the VP (Joe Biden) is the presiding officer, however he is hardly ever there. Most of the time the senate is presided by the President Pro Tiempor (I may have spelled that wrong) which is a honorary position of the longest serving member of the Senate.
Whoever is designated by the President Pro Tem -- typically it is a junior senator of the majority party.
== == == == the presiding officer in the senate is the vice president president of the senate
The president Pro-Tempore is the presiding officer in the senate. That individual is in charge of the Senate agenda in the absence of the vice president.
Vice President
Viice presiident
vice president
vice president
the Vice President
Vice President
Vice President.
Joe Biden
The US Senate.
The Presiding officer of the US Senate is the Vice president of the United States, but his title in the Senate is President of the Senate. The presiding officer of the House of Representatives is called the Speaker of the House.