# President pro tempore of the United States Senate

> second-highest-ranking official of the United States Senate

**Wikidata**: [Q1140848](https://www.wikidata.org/wiki/Q1140848)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/President_pro_tempore_of_the_United_States_Senate)  
**Source**: https://4ort.xyz/entity/president-pro-tempore-of-the-united-states-senate


## References

1. [Source](https://www.senate.gov/artandhistory/history/common/briefing/President_Pro_Tempore.htm)
2. [Source](https://www.senate.gov/reference/Index/Vice_President.htm)
3. Freebase Data Dumps. 2013
4. [Source](https://www.senate.gov/artandhistory/history/common/briefing/President_Pro_Tempore.htm#5)
5. [U.S. Senate: About the President Pro Tempore | Presidents Pro Tempore](https://www.senate.gov/about/officers-staff/president-pro-tempore/presidents-pro-tempore.htm)
6. Ballotpedia