Michele Bachmann

Michele Bachmann's campaign claims it has proof that CBS snubbed the Minnesota congresswoman during the latest Republican presidential debate.

Keith Nahigian, her campaign manager, posted an e-mail on her official Facebook page that was accidentally sent to the campaign from CBS News political analyst John Dickerson. In response to an e-mail about Bachmann appearing on a CBS webshow, Dickerson wrote, "let's keep it loose though since she's not going to get many questions and she's nearly off the charts in the hopes that we can get someone else."

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In the Facebook post, Nahigian slammed CBS and said the e-mail was proof that "the liberal mainstream media elites are manipulating the Republican debates by purposely suppressing our conservative message and limiting Michele's questions."

CBS later defended the e-mail to CNN, calling it "a candid exchange about the reality of the circumstances — Bachmann remains at 4% in the polls." Dickerson also stood by his e-mail, tweeting "she's at 4% ... I was reflecting that."