House Republicans are calling for a special counsel to determine whether Attorney General Holder perjured himself during his testimony to the House Judiciary Committee on Operation Fast and Furious, Fox News has learned.

House Judiciary Committee Chairman Lamar Smith, R-Texas, was sending a letter to President Obama on Tuesday arguing that Holder cannot investigate himself, and requesting the president instruct the Department of Justice to appoint a special counsel.

The question is whether Holder committed perjury during a Judiciary Committee hearing on May 3. At the time, Holder indicated he was not familiar with with the Bureau of Alcohol, Tobacco, Firearms and Explosives program known as Fast and Furious until about April 2011.

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