"On a motion like that they are going to follow the leader," said Stephen Massocca, senior vice president at Wedbush Securities in San Francisco.
Massocca said he thought McConnell would "put something unappetizing in there and the whole thing is going to fall apart, I don't think the $2,000 is going to happen."
The Dow Jones Industrial Average fell 101.76 points, or 0.33%, to 30,302.21, the S&P 500 lost 9.84 points, or 0.26%, to 3,725.52 and the Nasdaq Composite dropped 57.54 points, or 0.45%, to 12,841.89.
Volumes are expected to be light in the holiday-shortened week, which could lead to volatility.