The CNN Poll of Polls is an average of four Ohio polls of likely voters conducted over the last two weeks: Fox News (Sept. 16-18); University of Cincinnati/Ohio Newspapers; American Research Group (Sept. 10-12); and NBC News/Wall Street Journal/Marist (Sept. 9-11). The Poll of Polls does not have a sampling error.
The CNN Polling Center displays data from polling organizations that use CNN-approved
polling methodology as well as some that do not. The asterisk symbol * indicates that
the poll or polling organization does not meet CNN's methodological standards.
A CNN Poll of Polls is calculated using at least three polls that use CNN-approved methodology.
The Congressional Ballot polling data was provided by PollingReport.com.
With the conventions fading into the rearview mirror and the first presidential debate fast approaching, new polls in crucial swing states suggest that GOP nominee Mitt Romney's road to the White House is becoming a more challenging ride.