Chuck Grassley

Senator from Iowa, 1980-

Wikipedia Page “Grassley previously served eight terms in the Iowa House of Representatives (1959–1975) and three terms in the United States House of Representatives (1975–1981). He has served three stints as Senate Finance Committee Chairman during periods of Republican Senate majority.[1][2] When Orrin Hatch‘s Senate term ended on January 3, 2019, Grassley became the most senior Republican in the Senate. He was appointed President pro tempore of the Senate for the 116th United States Congress, making him third in the presidential line of succession after the Vice President and Speaker of the House.[3][4]. Chair of the Senate Finance Committee 2019-, Chair of the Senate Narcotics Caucus January 3, 2015 – January 3, 2019 Succeeded by John Cornyn