| Bayer US LLC (Corporation)
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| Bayer US LLC PAC (Federal)
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| Bayfield Co Democratic Party
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| Bayfield Co Republican Party
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| Bayfield County Local 1731 AFSCME/AFL-CIO
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| Bayland PAC (BayPAC)
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| Bayside Properties (Unregistered, Florida)
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| Beal for Assembly
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| Bear Commercial LLC (Corporation)
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| Beatty for DA
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| Beau Liegeois for Congress
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| Beauties of America Pageant (Unregistered)
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| Bedrock HCS at Greendale LLC (Corporation)
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| Beechwood Distributors (Corporation)
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| Believe in Wisconsin
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| Bell Ambulance Inc (Corporation)
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| Bell Ambulance Inc Employees PAC
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| Belle Vinez Winery (Corporation)
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| Bellsouth Corp Employees Federal PAC
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| Benish for Assembly
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