Donations made to political groups or candidates must be disclosed under state law for greater transparency in elections. While Congress created the Federal Election Commission to oversee federal elections in 1974, each state is left to regulate its local elections.
| Committee | Amount | Average contribution amount |
|---|---|---|
| Democratic Party of Wisconsin | $1,169,121 | $41,754 |
| Republican Party of Wisconsin | $474,861 | $8,048 |
| Joel for Wisconsin | $440,961 | $44,096 |
| Friends of Eric Wimberger | $321,377 | $24,721 |
| State Senate Democratic Committee | $235,740 | $23,574 |
| Friends of Sara Rodriguez For Wisconsin | $216,805 | $27,101 |
| Friends of Alberta Darling | $216,411 | $14,427 |
| Emily Siegrist for Wisconsin | $207,099 | $20,710 |
| Assembly Democratic Campaign Committee | $180,188 | $9,484 |
| Citizens for Rob Hutton | $168,545 | $21,068 |
| Friends of Deb Andraca | $166,582 | $18,509 |
| Piotrowski for State Senate | $155,966 | $31,193 |
| Knodl Assembly 24 | $142,852 | $11,904 |
| Steffen for Wisconsin | $115,203 | $19,200 |
| Friends & Neighbors of Robin Vos | $115,112 | $10,465 |
| Novak For Assembly | $83,658 | $20,914 |
| Testin for Senate | $73,225 | $10,461 |
| Pfaff for State Senate | $69,260 | $9,894 |
| Robert Wittke for Assembly | $62,336 | $12,467 |
| Ken Skowronski for Assembly | $57,504 | $7,188 |
| Friends of Kathy Hinkfuss | $52,364 | $13,091 |
| Kriss Marion for SW Wisconsin | $52,347 | $5,235 |
| Perry for Wisconsin | $48,769 | $9,754 |
| Friends for Dan Schierl | $47,164 | $597 |
| Sanfelippo for Assembly | $45,216 | $4,111 |
| Kapanke for Senate | $45,110 | $3,759 |
| Friends of Jacob Malinowski | $41,712 | $8,342 |
| Winker for Wisconsin | $41,104 | $20,552 |
| Hansen for Wisconsin | $39,885 | $4,986 |
| Patty for Senate | $38,791 | $6,465 |
| August for Assembly | $37,639 | $4,182 |
| Zimmerman for Wisconsin | $32,113 | $8,028 |
| Friends of John Macco | $32,038 | $3,560 |
| Meyers for Assembly | $31,000 | $10,333 |
| Taxpayers for Stafsholt | $26,000 | $1,300 |
| Committee to Elect a Republican Senate | $24,781 | $2,065 |
| Kristin Lyerly for State Assembly | $23,835 | $5,959 |
| Friends of Kevin Hoyer | $22,255 | $11,128 |
| Friends of Sarah for Assembly | $22,125 | $4,425 |
| Friends of Robyn Vining | $21,840 | $3,640 |
| Feyen for Senate | $21,602 | $4,320 |
| Amanda WhiteEagle for Wisconsin | $18,210 | $4,552 |
| Friends for Jessie | $17,908 | $1,990 |
| Clint Moses for WI 29th | $16,516 | $4,129 |
| Jim Ott for Assembly | $14,398 | $2,400 |
| Nancy for Wisconsin | $14,311 | $3,578 |
| Bonnie Lee for Wisconsin | $13,557 | $2,260 |
| Hintz for Assembly | $12,946 | $2,589 |
| Friends of Jessica Katzenmeyer | $11,007 | $1,376 |
| Keith Kern For Assembly | $10,768 | $2,692 |
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