Actually this may be very helpful to Martha Coakley. He is the only one who can help her and by helping her he helps himself by salvaging obamacare. A recent survey shows that black and Hispanic voter's are not likely to vote in this election as they did in the presidential election. However if they did vote, they would likely vote for Coakley.
He may be able to energize enough of those otherwise unlikely voters. That will be his message to them and we will hear it over and over all day Monday. I don't know what we can do about it other than to continue to get like minded voters voting on Tuesday. I do have an idea for a negative ad that will quell what Obama has to say but I don't think Scott will use it.