The totals combine fundraising for each candidate's campaign committee, their respective national party committees and a joint fundraising committee between the two.
Romney's campaign says the three groups have a combined $168.5 million cash on hand, meaning they spent about $17 million more than they brought in for the month of August. That's not surprising of course as spending -- particularly on TV ads -- ramps up at the end of a presidential campaign.
Obama's campaign did not announce its cash on hand total. At the end of July, Romney had a $60 million advantage in cash on hand.