We are filing charges against Attorney General Eric Holder tomorrow.”

Those words, sent in a Tweet at 8:40 PM yesterday by House Oversight Committee Chairman Darrell Issa, signal what may become the first serious existential legal challenge to an Obama administration official yet filed. It also marks a very clear escalation in Issa‘s investigation of the Justice Department’s “Operation Fast and Furious,” a gunwalking operation in Mexico that led to the death of over 200 people, including Border Agent Brian Terry.

Since the news of that operation broke, Issa‘s Oversight Committee has been engaged in a bureaucratic knife fight with the Obama administration’s Department of Justice, commanded by Attorney General Eric Holder, over certain documents related to the scandal. While the Justice Department has turned over thousands of pages relating to gunwalking during both of the previous Presidential administrations, a few key missing pieces remain, such as a set of documents that may explain how as many as 2000 guns fell into the hands of Mexican Drug Cartels. Holder has defied the House’s subpoenas for these documents repeatedly, racking up Congressional contempt citations both at the civil and criminal levels, all the while steadily defending his role in the scandal.

Issa has, understandably, refused to take Holder’s word, given the latter’s dogged unwillingness to have the documents related to the scandal disclosed, even in the face of an enforceable subpoena. The fight has further escalated since President Barack Obama made the decision to back Holder up, citing Executive Privilege, turning this into a drag-out fight between the Executive and Legislative branches of government.

Read More at The Blaze