by Katrina Trinko

The Santorum campaign, anticipating a wave of negative attacks from the Romney campaign and super PAC, releases a new ad the features a Romney clone shooting mud at a cardboard cutout of Santorum:

However, the most recent numbers, per ABC News, show that Santorum is being badly outspent in Michigan: his campaign has bought $41,000 worth of airtime in the state, while the Romney campaign has purchased $824,000. 

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