Wall Street ends lower ahead of debt vote
The Dow Jones industrial average dropped 61.45 points, or 0.50 percent, to 12,241.10, according to the latest available figures. The Standard & Poor's 500 Index lost 4.11 points, or 0.31 percent, to 1,300.78. The Nasdaq Composite Index gained 1.46 points, or 0.05 percent, to 2,766.25.
(Reporting by Chuck Mikolajczak; Editing by Kenneth Barry)