John Langdon (politician)

John Langdon
Portrait by Hattie Elizabeth Burdette, 1916.
2nd President of New Hampshire and 3rd Governor of New Hampshire
In office June 5, 1810 as Governor – June 5, 1812
Preceded by	Jeremiah Smith
Succeeded by	William Plumer
In office June 6, 1805 as Governor – June 8, 1809
Preceded by	John Taylor Gilman
Succeeded by	Jeremiah Smith
In office June 4, 1788 as President – January 22, 1789
Preceded by	John Sullivan
Succeeded by	John Sullivan
In office June 1, 1785 as President – June 7, 1786
Preceded by	Meshech Weare
Succeeded by	John Sullivan
President pro tempore of the United States Senate
In office November 5, 1792 – December 2, 1793
Preceded by	Richard Henry Lee
Succeeded by	Ralph Izard
In office April 6, 1789 – August 9, 1789
Preceded by	Position established
Succeeded by	Richard Henry Lee
United States Senator from New Hampshire
In office March 4, 1789 – March 3, 1801
Preceded by	Seat established
Succeeded by	James Sheafe
Personal details
Born	(1741-06-26)June 26, 1741 Portsmouth, New Hampshire, British America
Died	September 18, 1819(1819-09-18) (aged 78) Portsmouth, New Hampshire, U.S.
Political party	Pro-Administration Anti-Administration Democratic-Republican
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John Langdon (June 26, 1741 – September 18, 1819) was an American politician and Founding Father from New Hampshire. He served as a delegate to the Constitutional Convention, signed the United States Constitution, and was one of the first two United States senators from New Hampshire.

As a member of the Continental Congress, Langdon was an early supporter of the Revolutionary War. He later served in the United States Congress for 12 years, including as the first president pro tempore of the Senate, before becoming president and later governor of New Hampshire. He turned down a nomination for U.S. vice presidential candidate in 1812.