The Senate health care bill faces its first challenge in a late-night procedural vote. Yesterday, Senator Ben Nelson (D-NE) said he's prepared to vote for the bill after reaching a compromise on abortion language. He is likely the 60th vote needed to move forward. The Senate will hold general debate from 1:00 pm ET until 11:30 pm ET in preparation for a 1:00 am ET Monday vote on the motion to evoke cloture on the Majority Leader's Managers Amendment to the health care bill. This is the 17th day of health care debate.