wants Obama to win for the simple reason that it's been propped up by the Fed, and the current president, unlike Romney, hasn't mentioned nominating a new Fed president. Goldman Sachs, on the other hand, doesn't care if the market prospers or crashes as long as its high frequency trading machines get a cut of nearly every move the market makes. Goldman does, however, curry favor with the powers-that-be by donating to whomever it thinks will win elections. And it appears that it believes Republicans will be in power after this election.
78% of Goldman's contributions went to Democrats in 2008. 75% of its contributions have gone to Republicans this year. Trust me, if there's an organization that knows what the outcome of the November elections will be, its Goldman Sachs.