senete
When did he become prsident?
the President pro tempore
The president pro tempore presides over the Senate when the Vice President is absent. The current president pro tempore (as of 5/17) is Senator Orrin Hatch of Utah.
If the vice-president is absent, some other senator, such are the pro tempore, presides over the Senate.
If the Chief Justice is absent, the Associate Justice with the most seniority out of all the other Associate Justices presides.
The President pro tempore is the second highest ranking official of the United States Senate . He is a senator who is elected to his position by the Senate.In actual practice it is not unusual for the vice-president and pro temp to both be absent. In that case another senator or, I think, one of the staff serves as time-keeper and keeps track of who has the floor.
The president pro tempore of the Senate is elected by the Senate, and by tradition the majority party elects their party member who has the longest seniority in the Senate. He is a voting member of the Senate unlike the VP. Most of the time who presides over the Senate is irrelevant.
The 'President Pro Tempore' is the President of the Senate, when the Vice President of the United States is absent.
President Pro-Tempore
When the VP is not present, the President Pro Tempore presides over the Senate. By custom, the Senate elects the most senior Senator of the majority party to be the President Pro Temp. What ends up happening though, is that the position it delegated to the majority party's junior Senators so that they can learn about how the Senate floor works.
The Senate President Pro Tempore
The Pro Tempore Currently, Robert C. Byrd