This could be a significant development in a very close race. And it almost certainly will affect the outcome in PA, MI, and OH.Barack Obama's level of support among voters who preferred Hillary Clinton during the primaries is exactly where it was in June according to a new AP poll:An Associated Press-Yahoo! News poll shows that among adults who backed his rival during their bitter primary campaign, 58 percent now support Obama. That is the same percentage who said so in June, when Clinton ended her bid and urged her backers to line up behind the Democratic senator from Illinois. The poll shows that while Obama has gained ground among Clinton's supporters - 69 percent view him favorably now, up 9 percentage points from June - this has yet to translate into more of their support. In part, this is because their positive views of Republican presidential nominee John McCain have also improved during this period. Those supporting McCain have also edged up from 21 percent to 28 percent,...(Read Full Post)