U.S. Senator · R-Iowa

Grassley, Chuck

Chuck Grassley is Iowa's senior U.S. senator and has held that position since 1981, making him the longest-serving Republican in congressional history. As of 2025, he serves as president pro tempore of the Senate, a leadership role he previously held from 2019 to 2021. At 92 years old, Grassley is the oldest sitting…

Chamber

U.S. Senator

Party

Republican

State

Iowa