The Epic Two-Minute Attack Ad That Will Hit Mary Landrieu on Thanksgiving

Yet another conservative group jumps into the campaign to unseat the Louisiana senator.

Senator Mary Landrieu, a Democrat from Louisiana, speaks at a Senate Homeland Security Committee hearing about the Gulf Coast disaster and the nation's response to the Deepwater Horizon oil spill, in Washington, D.C., U.S., on Monday, May 17, 2010

Photographer: Joshua Roberts/Bloomberg

No political PAC has challenged the American attention span quite like Conservative War Chest. The pro-Republican group, best known for its epic "Gang of Five" attack ads on various Democratic candidates, is heading into Louisiana for a buy that could go as high as $100,000.

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