Apparently McCain's ads about Ayers isn't hurting Obama much....yet.
There has been some discussion of Barack Obama's relationship with the former radical activist William Ayers. Because Ayers is linked to plots to bomb the Pentagon and the U.S. Capitol in the 1970s, and because Ayres recently said he wished he had done more, some people say Obama's association with Ayers calls into question his judgment. Does Obama's connection with Ayers make you less likely to vote for him for president or does it not really make a difference to your vote? Less Likely 32% No Difference 61%
And a majority, 51%, say McCain is running a negative campaign, as compared to only 21% who say that about Obama.
http://www.foxnews.com/projects/pdf/101008_foxpoll.pdf