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. Johnson defeated Feingold in a rematch in 2016, and defeated Lieutenant Governor Mandela Barnes in 2022. Before entering politics, he was chief executive officer of a plastics manufacturer in Oshkosh, Wisconsin.

100 votes
13 days until Election Day
Tuesday, November 3, 2026 — every House seat and about a third of the Senate are on the ballot.
Born
1955-04-08, Mankato
Education
University of Minnesota, Edina High School
Prior Occupations
politician, businessperson, accountant
Positions Held
United States senator
Country
United States
Chamber
Senate
Party
Republican
State
Wisconsin
Status
Current member
In office since
2011
What this person's job actually involves