Describing a largely unpopular slate of candidates, a problem endemic to both parties according to Rasmussen, Ed Morrissey at Captain's Quarters notes:
[Hillary] has 30% of all voters definitely supporting her. However, she goes in the opposite direction from Romney with unaffiliated voters. Her numbers actually get worse when going to the center. Her rating among that group approaches the negative numbers Ron Paul receives from this group, -26% to -29% respectively...
Morrissey argues that McCain may benefit the most from low negatives.
Personally, I'm not convinced these esoteric polling questions are relevant. Especially, when only 75% of Americans know who's president.
Hat tip: Memeorandum.