President Obama has spent more than $91 million on television ads in eight swing states as of July 6, a massive sum that dwarfs the $23 million former Massachusetts governor Mitt Romney has disbursed on campaign commercials in those same places. Only heavy spending by Republican super PACs is keeping Romney within financial shouting distance of the incumbent on television at this point.

The data, which was provided to the Fix by a Republican media buyer, paints a fascinating picture of Obama’s overwhelming ad advantage in each of the states — Colorado, Florida, Iowa, Nevada, Ohio, New Hampshire, North Carolina and Virginia — where both campaigns are spending.

The spending disparity between the campaigns is particularly pronounced in three of the swingiest states: Florida, Ohio and Virginia.