Chuck Grassley

Charles Ernest Grassley is an American politician serving as the president pro tempore of the United States Senate. He was also president pro tempore from 2019 to 2021. A member of the Republican Party, Grassley is the senior United States senator from Iowa, serving since 1981. He is in his eighth Senate term. Before becoming a senator, Grassley served eight terms in the Iowa House of Representatives and three terms in the United States House of Representatives.