It's worth featuring again this simple but brutal new Obama ad, which is running in seven states:

The other important Obama ad out today was the two-minute spot we featured earlier that argues for a "new economic patriotism," rhetoric the president just launched on the campaign trail. Cillizza spells out why the length of the ad is important:

The Obama team knows that if you live in a swing state you have been absolutely snowed under with TV ads and that it’s next to impossible to differentiate one from the other. A two-minute ad, almost by definition, looks different than all of the other ads deluging the swing state airwaves — and standing out (or at least getting people not to fast forward through the ad) is the name of the game at this point.

Meanwhile, pro-Obama Super PAC Priorities USA has teamed with AFSCME to put out a new radio ad around Romney's 47% comments. The ad is part of a multi-ad $1.25 million radio campaign that will run through election day in Ohio and Virginia:

 

From the other side, the Romney campaign is pushing back on Obama's pushback of Romney's coal-focused attacks. This ad digs up some 2008 footage of Obama detailing the intended effect of his cap-and-trade proposal on the coal industry:

In outside spending news, Sasha Chavkin pushes back on the WSJ report we profiled earlier this week claiming that Super PACs might not be having much impact on the campaign:

"You can’t say his failure to close the gap shows the ads aren’t effective," said Michael Malbin, executive director of the Campaign Finance Institute and a political science professor at SUNY Albany. "They’re running ads at a time when the candidate is off in London putting his foot in his mouth."

It is always difficult to isolate the role of individual variables in a scenario as complex as a presidential campaign, where the quality of candidates, the flow of current events, and both campaign substance and campaign gaffes can all have an influence on voters. That does not mean that journalists should avoid drawing out factors such as super PAC spending, but that they have to be careful about linking cause and effect.

Right-wing headline writers are surely rejoicing as George Soros finally enters the campaign with a $1 million donation to Priorities USA. Meanwhile, Rove's Super PAC American Crossroads is out with a new, well, this:

On the other side of outside spending, Emily's List is teaming up with SEIU to spend $1 million going after Todd Akin:

In other down-ticket news, Maine's GOP Senate candidate Charlie Summers is out with a new biographical spot:

Lastly, Samuel L. Jackson adapts to the presidential campaign in this NSFW play for Obama voters: