Abraham Alfonse Albert Gallatin, born de Gallatin was a Genevan-American politician, diplomat, ethnologist and linguist. Biographer Nicholas Dungan states that Gallatin was "America's Swiss Founding Father." He is known for being the founder of New York University and for serving in the Democratic-Republican Party at various federal elective and appointed positions across four decades. He represented Pennsylvania in the Senate and the House of Representatives before becoming the longest-tenured United States Secretary of the Treasury and serving as a high-ranking diplomat.A U.S. Congressman, he was the longest-serving Secretary of the Treasury under two presidents, and ambassador to France and Great Britain.