In the Zogby daily tracking poll, Obama passed Clinton in Ohio for the first time today.
"In Ohio, there is very little movement as the Democratic candidates have solidified their support among those groups that have come to be familiar supporters of each. Obama leads Clinton among men by a 54% to 39% margin, while Clinton leads Obama among women by a 51% to 42% edge. The Obama increase in support among men is likely what has moved him ahead of Clinton.
"Obama continues to lead among Ohio voters under age 50, while Clinton remains strongest among voters over age 50. Clinton leads in the rural areas of Ohio and in Cincinnati, while Obama leads in the Democratic bastion of Cleveland and the state capital of Columbus."
http://www.zogby.com/...
UPDATE: There is a Suffolk University poll out today showing Clinton up by 12 in Ohio. But a look at the cross-tabs in remarkable. Only 6% of their sample was under age 35; only 8% of their sample was African American. What a difference proper samplying makes!