July 31, 2012 at 8:30 AM ET on C-SPAN's Washington Journal

During Tuesday morning's C-SPAN interview, Ken Goldstein reported that there are almost no positive political campaign ads running right now, with the exception of three Spanish-language ads. Of the $246.2 million already spent on campaign advertisements in 2012, only 28% has been for positive ads, while 72% has gone towards negative ads.

Click on the image above to view the CNN interview.

Ken explained that both campaigns are focusing their ammunition on the other at this point. The American people already know Obama, but they don't yet know Romney. As such, the Obama campaign is defining Mitt Romney through negative advertising in an effort to stop his campaign from reaching a threshold level of credibility. Now it all comes down to how the Republicans introduce Romney over next couple of months.