Wall Street extends losses on election jitters

Wall Street extended losses in afternoon trading on Tuesday, with the S&P 500 near a four-month low, weighed down by weak construction spending data and uncertainty surrounding the U.S. presidential election. Investors have been cautious about taking large positions due to mounting uncertainty about next week's election and a potential U.S. interest rate hike before the end of the year. Democrat Hillary Clinton held a 5 percentage point lead over Republican rival Donald Trump, according to a