Thune, who is 63 and in his fourth Senate term, has promised to work closely with President-elect Donald Trump despite differences between the two over the years.

Clinton Anderson, who served as the United States Secretary of Agriculture under President Harry S. Truman, was born in Centerville, South Dakota, though he spent much of his life in New Mexico, serving as a U.S. Representative for the state before his appointment and a U.S. Senator afterward.