View source for President pro tempore

A '''President pro tempore''' is an officer of a body who serves as President when the President is unavailable. 

In the [[United States Senate]], this is a [[United States Constitution|Constitutionally]] recognized officer of the [[United States Senate|Senate]] who presides over the chamber in the absence of the [[Vice President of the United States of America|Vice President]]. The President Pro Tempore (or, "president for a time") is elected by the Senate and is, by custom, the [[Senator]] of the majority party with the longest record of continuous service.<ref>[https://www.senate.gov/reference/glossary_term/president_pro_tempore.htm] US Senate Reference</ref>