Rep. Darrell Issa pressed ahead with a committee vote Wednesday to hold  Attorney General Eric Holder in contempt of Congress, despite an eleventh-hour  move by President Obama to exert executive privilege over the Fast and Furious  documents at the heart of the dispute.

The announcement touched off a caustic debate on the House Oversight and  Government Reform Committee that lasted into the afternoon, as Democrats accused  Issa of prosecuting a "political witch hunt" and Republicans stepped up their  criticism of Holder's "stonewalling" over the Fast and Furious probe. Even for  Washington, the tone at the hearing was decidedly bitter and  accusatory.

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WH Reacts to Executive Privlidge Order

Read Holder's Letter to Obama

Read Holder's Letter Informing Congress of Executive Order