Rasmussen Reports has established a "Hillary Meter," which it will be updating every couple of weeks:

While moderating her image, Mrs. Clinton remains a polarizing figure--32% say that if she is the Democratic nominee, they will definitely vote FOR her. A slightly larger number, 37% will definitely vote AGAINST. Twenty-six percent (26%) say it depends upon who she runs against.

(Emphasis in original.)

Just because a candidate is a polarizing figure, doesn't mean the candidate can't win the presidency as we've seen twice since 2000.

MORE: Rand Holman has additional thoughts.