No, he's a Republican...by name only though. He is closer
aligned with the Democratic platform than he is with the Republican
platform.
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Nelson Rockefeller was nominally a Republican, of the variety
often called "RINO" or "Republican In Name Only" or "Country Club
Republican". His political views were essentially the same as those
of a "moderate democrat".
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Any Republican president had a Republican VP. If you would like
a particular name you need to give the name of the president.