| Larson for Milwaukee (Local-Milwaukee County, WI)
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| LaSalle National
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| Laspac (Unregistered - Louisiana)
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| Lasry for Wisconsin (Federal Candidate)
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| Latino Leaders for Equality, Growth, Opportunity, Progressive Action & Change - LLEGO PAC (Federal)
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| Latino Victory Fund (Federal)
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| Latinos United for Political Action
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| Laura Barker for 84th Assembly
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| Laura Gapske for Assembly
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| Laurie Burke for County Board (Manitowoc County)
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| Laurie Fischer Group (Corporation)
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| Lautz for Assembly
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| Law Offices of John O'Connor (Corporation)
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| Lawrence Lee for Assembly
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| Lawton & Cates SC (Corporation)
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| Lawton Committee
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| Lawyers Active in WI
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| LBC Political Fund
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| LD Rockwell for Senate
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| LDS Inc - Leading Dairy Solutions (Corporation)
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