Jonathan Bernstein doesn't think it helps much:
Would you rather be the target of an attack ad claiming that you voted for death panels, and your district is just lucky that it never passed -- or the target of an attack ad claiming that little Bobby died because of the brand new shortage of surgeons brought on by that horrible new law (or even a tamer one blaming increased premiums on the new law)? Will activists who are angry now really keep their checkbooks in their pockets when confronted with easily demonizeable GOP candidates? Will anyone care about ending rescissions, since most people won't know that anything has changed? Simple polling just isn't going to help. Pols will need to use their political judgment. And if they don't have much of that, they may find very soon that they're in the wrong line of work.