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==Later political service==

==Later political service==

Langdon was elected to the [[United States Senate]], one of [[New Hampshire]]'s first Senators.  He served from March 4, 1789, to March 3, 1801.  On April 6, 1789, he was elected the first President pro tempore of the Senate, presiding over the electoral vote that made [[George Washington]] the first [[President of the United States]].  Langdon also served as President pro tempore of the Senate during the Second Congress.

Langdon was elected to the [[United States Senate]], one of [[New Hampshire]]'s first two Senators, serving first with Paine Wingate and then Samuel Livermore.  He served from March 4, 1789, to March 3, 1801.  On April 6, 1789, he was elected the first President pro tempore of the Senate, presiding over the electoral vote that made [[George Washington]] the first [[President of the United States]].  He remained pro tempore into the Second Congress.

Retiring from the Senate in 1801, Langdon rejected President [[Thomas Jefferson]]'s offer to become [[Secretary of the Navy]]. Instead he returned to his business interests in New Hampshire.  He continued to lead an active political life, both as legislator and governor. He declined a nomination as candidate for [[Vice President of the United States]]<ref>http://www.history.army.mil/books/RevWar/ss/langdon.htm</ref> and retired in 1812.

Retiring from the Senate in 1801, Langdon rejected President [[Thomas Jefferson]]'s offer to become [[Secretary of the Navy]]. Instead he returned to his business interests in New Hampshire.  He continued to lead an active political life, both as legislator and governor. He declined a nomination as candidate for [[Vice President of the United States]]<ref>http://www.history.army.mil/books/RevWar/ss/langdon.htm</ref> and retired in 1812.