Yes, I see the same thing.
That, and one other recent poll shows that should the solib get the vote, he seems to run the risk of breaking up the party.
http://www.freerepublic.com/perl/poll?poll=172;results=1
The Looming GOP Rift: Will the Right Secede?
http://www.freerepublic.com/focus/bloggers/1791057/posts?page=133
I think you are absolutely right. The party is already in a precarious position and a liberal nominee will permanently split the fracture.