| Wells Fargo Employee (was Norwest Corp) (Federal)
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| WEPAC
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| West Allis Firefighters PAC
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| West Allis Professional Police Assn
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| West Allis/West Milwaukee County Democratic Party
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| West Allis/West Milwaukee Education Assn
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| West Allis/West Milwaukee Republican Unit
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| West Bend Firefighters Local 2025
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| West Central Education Assn
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| West Suburban Council PAC
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| Western WI Building & Construction (Eau Claire Bldg Const Trades)
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| Westinghouse Employees
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| Westphal for Assembly
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| Westside Republican Club
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| Wetherby Cranberry Co Inc (Corporation)
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| Wexler Group (Federal)
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| Weycker for Assembly
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| Weyerhaeuser PAC
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| WFP National PAC
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| WFP National PAC
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