A study by the Wesleyan Media Project suggests that President Obama’s upward tick in the polls is due to advertising, not the assumed post-convention bounce.
“In the past couple of weeks, Obama advertising has outpaced Romney advertising by more than a two to one margin,” said Erika Franklin Fowler, co-director of the Wesleyan Media Project. “During both the Democratic and Republican conventions, pro-Obama advertisers dominated the airwaves in numerous markets, including key swing states such as Colorado, Ohio, Nevada, and Virginia. This advantage may help to explain why Obama’s ‘convention bounce’ was larger than Romney’s.”
Source: Kantar Media/CMAG with analysis by the Wesleyan Media Project