Let's see:
Karl Rove [1]
Steve Schmidt [2]
and now Tucker Eskew [3] has joined McCain.
All McCain needs to complete his dream smear team is to resurrect Lee Atwater [4], the GOP's "happy hatchet man." (Obviously, McCain would, if he could.) Except it was Atwater who, as he lay dying of a brain tumor, discovered what America needed most was what was missing in him, "a little heart, a lot of brotherhood" to cure "the spiritual vacuum at the heart of American society, the tumor of the soul." Bill Moyers had this video remembrance [5].
Links:
[1] http://dyn.politico.com/printstory.cfm?uuid=8B58A658-3048-5C12-006F9CBBFFC54DE3
[2] http://www.tnr.com/politics/story.html?id=3c33403d-a212-43db-99ae-6fe3af25fd63
[3] http://blogs.abcnews.com/politicalpunch/2008/09/mccain-hires-go.html
[4] http://en.wikipedia.org/wiki/Lee_Atwater
[5] http://www.youtube.com/watch?v=N4V4nb6OTG0