Obama more likely to beat McCain: Poll

Democratic voters no longer see Hillary Rodham Clinton as the party's strongest contender for the White House, but her opponent is also sustaining dents and dings from their lengthy presidential fight, an Associated Press (AP)-Yahoo News poll shows.

Voters of all types have got a better sense of Barack Obama, who was an obscure Illinois legislator just four years ago. As more people moved from the "I don't know him" category in the poll, more rated Obama as inexperienced, unethical and dishonest. And 15 percent erroneously think he's a Muslim, thanks in part to disinformation widely spread on the Internet.

But Obama's positive ratings have climbed as well, while Clinton - widely known since the early 1990s - has been less able to change people's views of her. And when those views have shifted, it has hurt her more than helped.