| WRA Green Bay Chapter
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| WRA La Crosse Chapter PAC
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| WRA Vacationland Chapter PAC
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| Wren Keturi for Wisconsin
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| WTBA PAC (WI Transportation Builders Assn )
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| Wulf for State Senate
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| WVMS-Oak Creek LLC (Corporation)
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| Wyeth Good Government Fund
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| Wynhoff for Assembly
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| Wynn for Wisconsin
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| Wysocki Produce Farm Inc/RPE Inc (Corporation)
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| Xcel Energy WI PAC/Northern States Power Co
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| Xcel Energy/Northern States Power Co Employees
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| Xerox Corporation Political Action Committee
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| Yahara Materials Inc (Corporation)
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| Yee Xiong for WI
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| Yes on Term Limits
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| Yes We Can Democratic Club (Federal)
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| Young Americans for Liberty, Inc
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| Young Democrats of Wisconsin
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