Patrick Joseph "Pat" Toomey (born November 17, 1961) is an American businessman and politician. He is the junior United States Senator for Pennsylvania, in office since 2011, and a member of the Republican Party. Previously, Toomey served as a United States Representative for three terms, from 1999 to 2005, but he did not seek a fourth term in compliance with a pledge he had made while running for office in 1998.Toomey attended La Salle Academy in Providence, Rhode Island before earning a B.A.