US stocks closed lower Wednesday as investors kept a watchful eye on the prospects for the debt-limit deal in an expected House floor vote. Meanwhile, strong US jobs data and China’s economic woes pressured global markets. The S&P 500 (^GSPC) fell 0.60% while the Dow Jones Industrial Average (^DJI) dipped 0.40% or more than 130 points. The technology-heavy Nasdaq Composite (^IXIC) slipped 0.63%. US bond yields weakened as investors fretted over the potential impact of the debt-limit deal and reviewed the release of fresh jobs data. The yield on the benchmark 10-year Treasury dropped to 3.62%. The two-year note yields,...