Former House Speaker John Boehner John Andrew BoehnerLongtime House parliamentarian to step down Five things we learned from this year's primaries Bad blood between Pelosi, Meadows complicates coronavirus talks MORE (R-Ohio) says that President Trump Donald John TrumpOmar fires back at Trump over rally remarks: 'This is my country' Pelosi: Trump hurrying to fill SCOTUS seat so he can repeal ObamaCare Trump mocks Biden appearance, mask use ahead of first debate MORE would be making a big mistake if he ordered the firing of special counsel Robert Mueller Robert (Bob) MuellerCNN's Toobin warns McCabe is in 'perilous condition' with emboldened Trump CNN anchor rips Trump over Stone while evoking Clinton-Lynch tarmac meeting The Hill's 12:30 Report: New Hampshire fallout MORE or Deputy Attorney General Rod Rosenstein Rod RosensteinDOJ kept investigators from completing probe of Trump ties to Russia: report Five takeaways from final Senate Intel Russia report FBI officials hid copies of Russia probe documents fearing Trump interference: book MORE.

In an interview with the "Today" show, Boehner John Andrew BoehnerLongtime House parliamentarian to step down Five things we learned from this year's primaries Bad blood between Pelosi, Meadows complicates coronavirus talks MORE says that firing Mueller would be a "bad idea" that would only land Trump in more trouble.

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"It's a very bad idea. These are public servants who've got long careers, stand-up people, who are charged with an investigation, and it's real clear: Either there are facts, or there's not," Boehner said.

"Either there are crimes that were committed, or there weren't. And the American people deserve to see the truth. We live in the most open society in the world, there's no reason why those investigations should be impeded at all," he added.

Boehner's comments come amid refueled speculation that Trump is considering firing both Mueller and Rosenstein over the Russia investigation, which this week continued with a raid of the offices of Michael Cohen, Trump's longtime lawyer.

Trump and the White House have denied for months that Mueller's position is in jeopardy, and the president moved to reassure Americans on Twitter this week after Monday's raid, which he called a "disgrace" and an "attack on our country" in comments to reporters.

"I have agreed with the historically cooperative, disciplined approach that we have engaged in with Robert Mueller (Unlike the Clintons!). I have full confidence in Ty Cobb, my Special Counsel, and have been fully advised throughout each phase of this process," Trump tweeted on Thursday.

White House press secretary Sarah Huckabee Sanders said this week that while Trump is not making plans to fire the special counsel, “he certainly believes that he has the power to do so.”