Mercatus Center – Who Does a Better Job of Managing Money, Republicans or Democrats? 

Mercatus Center – The paper, by Marian Moszoro and Michael Bykhovsky, uses Federal Election Commission data to identify equity fund managers by their political contributions. If the managers at a fund gave to only one of the two major political parties, that fund is then classified as having an intellectual or ideological connection to that party.

OK, so who wins this politically fraught horse race? Asnswer here