From vichydems.blogspot.com:

SECOND, call the “URGE ABSTENTION” Senators identified immediately below and do the same — say that you hope they vote NO on cloture this afternoon but if they can’t, urge them to ABSTAIN from the cloture vote by visiting wounded soldiers at Walter Reed Army Hospital at 4:30 p.m. Doing so will be just as good as a “no” vote but will give them political cover with their conservative voters back home. Again, call their DC AND District offices. And again, if their staff will commit to a position on cloture and/or abstention, please post a comment here.

Nice way to use the troops.