About the President Pro Tempore | Historical Highlights & Resources

Historical Highlights

• President Pro Tempore John Ingalls Feb 26, 1887

• Senate Deadlocked May 11, 1911

• Presidential Succession Act Jul 18, 1947

Other Resources

• Pro Tem: Presidents Pro Tempore of the United States Senate Since 1789

• The President Pro Tempore of the Senate: History and Authority of the Office (CRS) (PDF)

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