Former Rep. Joe Walsh (R-Ill.) on Wednesday ripped Rep. Devin Nunes Devin Gerald NunesSunday shows preview: With less than two months to go, race for the White House heats up Sunday shows preview: Republicans gear up for national convention, USPS debate continues in Washington Sunday shows preview: White House, congressional Democrats unable to breach stalemate over coronavirus relief MORE (R-Calif.) for crafting and pushing for the release of a classified memo that purports to show bias within the FBI.

“@DevinNunes should be ashamed of himself. He’s not the Chair of the House Intel Committee. He’s the Chair of Trump’s re-election campaign,” Walsh tweeted.

.@DevinNunes should be ashamed of himself. He's not the Chair of the House Intel Committee. He's the Chair of Trump's re election campaign.



Release the memo if you want, but be honest about what it is: A Republican written political document. — Joe Walsh (@WalshFreedom) February 1, 2018

The House Intelligence Committee, which Nunes chairs, voted Monday night on party lines to make public a memo that Republicans say contains evidence the FBI and Department of Justice (DOJ) were biased against the Trump campaign.

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The document reportedly contains allegations the FBI abused a surveillance program to target a Trump campaign official during the 2016 presidential race.

The decision to release the memo now lies with President Trump Donald John TrumpHR McMaster says president's policy to withdraw troops from Afghanistan is 'unwise' Cast of 'Parks and Rec' reunite for virtual town hall to address Wisconsin voters Biden says Trump should step down over coronavirus response MORE, who indicated after his State of the Union address Tuesday that he will make the document public, despite concerns from his Department of Justice and the FBI.

The DOJ has warned making the memo public would be "extraordinarily reckless," while the FBI said it has "grave concerns" about the document's accuracy.

Officials opposed to releasing the memo argue that doing so would reveal intelligence gathering sources and methods.

Nunes on Wednesday knocked the FBI's concerns over the memo as "spurious objections."