NEW YORK (Reuters) - The Dow industrials lost more than 300 points in a sell-off on Wednesday that drove all major stock indexes down over 2 percent in the wake of the presidential election as investors' focus shifted to the looming "fiscal cliff" debate and Europe's economic troubles. The Standard & Poor's 500 Index posted its biggest daily percentage drop since June, with all 10 S&P sectors solidly lower and about 80 percent of stocks on both the New York Stock Exchange and the Nasdaq ending in negative territory. Both the Dow and the S&P 500 closed at their lowest levels since early August. ...{br}{br}View the Entire Article{br}