Pro-Obama Super PAC Priorities USA has a non-Bain ad out in five states, focusing on a former Romney supporter's disappointment over his performance as governor (amount of money behind ad unknown):

Liberal Super PAC American Bridge released a web video rounding up convention speakers' previous attacks on Romney:

For its part, the Obama campaign put out a web video that they call a Romney "infomercial", while the Romney campaign has a new Spanish (subtitled) language ad out (ad buy size/scope unknown):

The RNC meanwhile is previewing one of its convention videos airing tonight in Tampa. It's another attempt to wean off disaffected Obama voters:

And in downticket news, Senator Claire McCaskill (D-MO) released a new positive ad (it doesn't mention Todd Akin), while Akin himself is trying to reclaim the narrative with this Huckabee-starring web video that happily attacks McCaskill:

Lastly, the anti-abortion group Susan B. Anthony List is launching a campaign against Obama, starting with a $150K buy in Missouri running this ad, in which a woman who survived an abortion makes a case against the president (heads up: she's a close-talker):

Ad War archive here.