ADP reported that US private payrolls rose an average of 7,750 per week in the four weeks ending January 3, the smallest weekly increase in six weeks.The risk of another partial government shutdown is also weighing on stocks. Senate Democrats threatened to block a government funding deal over Department of Homeland Security/ICE funding after the ICE shooting of an ICU nurse in Minnesota on Saturday. There could be a partial government shutdown when the current stopgap funding measure expires this Friday.Sto ...