Ron JohnsonR-Oshkosh, elected in 2016 to a second six-year term(202) 224-5323Email through ronjohnson.senate.govTwitter: @SenRonJohnson
Chief of staff: Tony Blando
Bio: Born Mankato, Minn., April 8, 1955. Plastics manufacturing company owner; accountant.
Committees: Homeland Security and Governmental Affairs (chair); Budget; Commerce, Scienceand Transportation; Foreign Relations
Tammy BaldwinD-Madison, reelected in 2018 to a second six-year term(202) 224-5653Email through baldwin.senate.govTwitter: @SenatorBaldwin
Chief of staff: Bill Murat
Bio: Born Madison, Feb. 11, 1962. Former practicing attorney. Elected to state Assembly 1992-96. Elected to U.S. House of Representatives 1998-2010 and to U.S. Senate in 2012.
Committees: Appropriations; Health, Education, Labor and Pensions (HELP); and Commerce, Science and Transportation