| United Steelworkers Local 1343
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| United Steelworkers Local 2169
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| United Steelworkers Non Federal Account (Corporation)
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| United Steelworkers of America - USTAPAC (Federal)
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| United Steelworkers of America District 2
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| United Steelworkers of America-Pittsburgh
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| United Wisconsin
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| UnitedHealth Group Inc (Corporation)
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| Universal Foods Corp Good Govt
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| Unknown/Unregistered Committee
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| Unknown/Unregistered Committee
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| Unknown/Unregistered Committee
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| Unknown/Unregistered Committee
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| Unknown/Unregistered Committee
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| Unknown/Unregistered Committee
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| Unterberger for Wisconsin
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| UPFF Tempe Chapter PAC Local 1329 (Unregistered, Arizona)
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| Uphoff Resorts LLC (Corporation)
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| US Bancorp (Federal PAC)
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| US Bancorp/1st Bank System
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