The ad, "Cards," is a joint effort with Connecticut's Future PAC, a group formed in July that lists Joseph Taborsak, a Connecticut state Democratic lawmaker, as its treasurer. It's the first expenditure from Connecticut's Future this cycle.
"She's fixed the game against Connecticut's middle class," the voiceover says.
The senate race in Connecticut has received increased scrutiny and involvement from both parties as it's become increasingly competitive in recent weeks. An independent poll recently showed McMahon up by 3 percentage points over Rep. Chris Murphy (D), a feat she was never able to achieve during her losing 2010 campaign against Sen. Richard Blumenthal (D).
Majority PAC's involvement in the race indicates Democrats may not be entirely certain about their nominee's chances in the state, despite the fact that the last poll there put President Obama ahead of Mitt Romney by 21 percentage points. But it's also simply a response to one of McMahon's greatest advantages: her ability to self-fund. She spent $50 million of her own money on the race in 2010 and has contributed $12.4 million out of her own pockets this time around.
Watch the ad: