| Walkington for Wisconsin
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| Wall for Congress
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| Wall for Wisconsin
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| Waller for Assembly
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| Wally Morics Committee (Local- Milwaukee County)
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| Walmart (Corporation)
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| Walmart Stores Inc PAC for Responsible Government (Federal)
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| Walmart Stores/WAL-PAC
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| Walworth County Central Labor Council
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| Walworth County Democratic Party
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| WAMO PAC
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| WANA (Unknown/Unregistered)
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| WANA (WI Assn of Nurse Anesthetists-Conduit)
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| WANDPAC (Wisconsin Academy of Nutrition & Dietetics)
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| Warren Petryk for Assembly
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| Warwick Local 2748 (Unregistered, Rhode Island)
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| Warzynski Paradise Farms (Corporation)
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| Washburn Co Law Enforcement
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| Washburn Co Republican Party
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| Washburn County Democrats
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