Wisconsin U.S. Senators (2026)
WI · U.S. Senate Delegation
Joined the Union
May 29, 1848
Population (Est.)
5,910,955
Current U.S. Senators
Delegation Voting Summary
119th CongressAgreement Rate
6.5%
Ron Johnson and Tammy Baldwin voted the same way on 57 of 875 shared votes
Split delegation: Republican / Democrat
Ron Johnson
Senior Senator
Party Unity
97.5%
Missed Votes
1.3%
878 votes cast of 890 roll calls
Tammy Baldwin
Junior Senator
Party Unity
97.3%
Missed Votes
0.1%
887 votes cast of 890 roll calls
Former Senators from Wisconsin
All 26 former U.S. senators who represented Wisconsin, most recent first.
- Herbert Kohl 1989 – 2013
- Russell Feingold 1993 – 2011
- Robert Kasten, Jr. 1981 – 1993
- William Proxmire 1957 – 1989
- Gaylord Nelson 1963 – 1981
- Alexander Wiley 1939 – 1963
- Joseph McCarthy 1947 – 1957
- Robert La Follette, Jr. 1925 – 1947
- Francis Duffy 1933 – 1939
- John Blaine 1927 – 1933
- Irvine Lenroot 1918 – 1927
- Robert La Follette 1906 – 1925
- Paul Husting 1915 – 1917
- Isaac Stephenson 1907 – 1915
- John Spooner 1885 – 1907
- Joseph Quarles 1899 – 1905
- John Mitchell 1893 – 1899
- William Vilas 1891 – 1897
- Philetus Sawyer 1881 – 1893
- Angus Cameron 1875 – 1885
- Matthew Carpenter 1869 – 1881
- Timothy Howe 1861 – 1879
- James Doolittle 1857 – 1869
- Charles Durkee 1855 – 1861
- Henry Dodge 1848 – 1857
- Isaac Walker 1848 – 1855