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Business Latest: The GOP donor you’ve never heard of

Bob Mercer, co-CEO of Renaissance Technologies, has been donating tens of millions to conservatives and has become one of the top supporters in the cycle.

Voters get an 'I VOTED TODAY' sticker after casting their ballots on election day at the Red Oak Fire Department on Nov. 4, 2014 in Red Oak, Iowa.
Voters get an 'I VOTED TODAY' sticker after casting their ballots on election day at the Red Oak Fire Department on Nov. 4, 2014 in Red Oak, Iowa.Getty Images

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