Ronald Johnson

Ronald Harold Johnson is an American businessman and politician serving as the senior United States senator from Wisconsin, a seat he has held since 2011. A Republican, Johnson was first elected to the U.S. Senate in 2010, defeating Democratic incumbent Russ Feingold. He was reelected in 2016, defeating Feingold in a rematch, and in 2022, narrowly defeating Lieutenant Governor Mandela Barnes. Before entering politics, he was chief executive officer of a plastics manufacturer in Oshkosh, Wisconsi