Last Sunday hyper-partisan hitman Darrell Issa really screwed up and admitted on Fox News that after 18 months of investigating, he had absolutely no evidence the White House was involved in a cover-up in the “Fast and Furious” case.

Oops! Debunked his own fake outrage! Well, you can bet that Congressman Issa got an earful about this from his Republican cohorts, because after all, the whole purpose of this bogus investigation is to damage President Obama’s chances of reelection, and how can they do that if Issa just spills the beans like a big blabbermouth?

Today, Rep. Issa is trying to make up for this mistake by writing a crazed letter accusing President Obama of being directly involved — exactly what he just said on Sunday he had no evidence to support: Issa Accuses Obama of Involvement in Fast and Furious Operation.

Rep. Darrell Issa (R-Calif.) on Tuesday accused President Obama of either obstructing a congressional investigation or of involvement in the Fast and Furious gun-tracking operation.

In a seven-page letter to the president, the chairman of the House Oversight and Government Reform Committee leveled his most direct allegations yet at Obama just two days ahead of a full House vote on whether to place Attorney General Eric Holder in contempt of Congress for failing to respond to a subpoena.

Issa took issue with Obama’s assertion of executive privilege over a cache of documents at the Department of Justice — including a February 2011 letter later withdrawn by the agency — that Issa believes includes information on Holder’s role in Fast and Furious.

“Either you or your most senior advisers were involved in managing Operation Fast and Furious and the fallout from it, including the false Feb. 4, 2011 letter provided by the attorney general to the committee,” Issa wrote to Obama. “Or, you are asserting a presidential power that you know to be unjustified solely for the purpose of further obstructing a congressional investigation.”