The 'President Pro Tempore' is the President of the Senate, when the Vice President of the United States is absent.
When the US Vice President is absent or acting as President, his/her Senate duties fall to the US Senate President Pro Tempore, who by tradition is the longest-serving Senator of the majority party.
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.
The officer who presides in the absence of the Vice-President is called "President pro tempore," an officer chosen by members of the Senate, usually the most senior senator in the majority party. The phrase "pro tempore" means "for the time being". Normally, neither the Vice President of the United States nor the President pro tempore presides; instead, the duty is generally delegated to the junior Senators of the majority party to help them learn parlimentary procedure, since most of the time the major function of the person presiding over the Senate is just to rule on points of order.
The Lt. Gov. presides over the Senate, and takes the place of the Gov. if Gov. is unable to serve.
Rhode Island was absent from the Constitutional Convention of 1787
The Senate President Pro Tempore
The U.S. Vice President is the President of the Senate. When he/she is absent or acting as President, the Senate President Pro Tempore is in charge.
the president pro temp
When the US Vice President is absent or acting as President, his/her Senate duties fall to the US Senate President Pro Tempore, who by tradition is the longest-serving Senator of the majority party.
President Pro-Tempore
Present pro tempare
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The president pro tempore serves as the head of the senate in place of the vice president- APEX
The treasurer will up hold the position
If the vice-president is absent, some other senator, such are the pro tempore, presides over the Senate.
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.
The Vice President is President of the Senate and has the power to break a tie on votes in the Senate. The Vice President is also the successor to the Presidency if the President cannot continue serving in office. Vice Presidents have become more involved and more powerful in recent years. They serve as close advisers to the president and often bolster the presidents credentials because of their previous experience in government.