Obama bests McCain by 4 points (48 percent to 44 percent), and Clinton also wins by 4 points (47 to 43 percent). Neither lead is considered statistically significant. However, in a race against McCain, Obama gets more independent support than Clinton does.
Even so, the poll indicates that both Obama and Clinton have been harmed by the fierce attacks they have aimed at each other. While Obama has a 57 percent favorable rating among all voters in the latest survey, that represents a 4 percent drop from March, and his unfavorable rating has jumped from 28 percent to 36 percent. Clinton is viewed favorably by just 49 percent, compared to 56 percent in March, while 47 percent view her as unfavorable, compared to 40 percent in the previous poll. Even so, the unopposed McCain has also suffered a setback: his favorable rating has dipped to 52 percent from 55 percent, while his unfavorable rating has increased to 42 percent from 35 percent.
One of the more devastating results for Clinton was that a majority of all registered voters now see her as dishonest and untrustworthy. According to the poll, just four in 10 (41 percent) registered voters view the New York senator as honest and trustworthy, while 51 percent think the opposite. This compares with solid majorities of voters who see Obama and McCain as honest and trustworthy (both polled 61 percent).
http://www.newsweek.com/id/132721