Chuck Grassley, American lawyer and politician
Charles Ernest Grassley (born September 17, 1933) is an American politician serving as the president pro tempore emeritus of the United States Senate, and the senior United States senator from Iowa, having held the seat since 1981. He is in his seventh Senate term, having first been elected in 1980.

A member of the Republican Party, Grassley 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. When Orrin Hatch's Senate term ended on January 3, 2019 following his retirement, Grassley became the most senior Republican in the Senate and its president pro tempore.During his four decades in the Senate, Grassley has chaired the Senate Finance Committee, the Senate Narcotics Committee, the Senate Judiciary Committee, and the Senate Aging Committee.