Wall Street analysts have gone from taking the U.S. presidential election largely in stride to expressing concern about the lack of investor preparedness, and Goldman Sachs and other ares telling investors it's time to get ready. David Kostin, chief U.S. equity strategist, and his Goldman team came out with some pre-election tips for investors: Protect against the likely rise in equity uncertainty ahead of the U.S. presidential election; buy companies with big government revenue exposure; and take the weak performance of defensives as a buying opportunity. Read the original story from MarketWatch.