A Democratic lawmaker tweeted Friday that he will introduce articles of impeachment against 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 if he orders the firing of 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 a tweet, Rep. Brendan Boyle (D-Pa.) reacted to reports that Trump is considering firing both Rosenstein and 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, the special counsel in charge of the investigation into Russian election meddling.

If @realDonaldTrump fires the Deputy AG, I will immediately introduce an article of impeachment. This is a clear attempt to obstruct justice. https://t.co/IJ5c9eDNbN — Rep. Brendan Boyle (@CongBoyle) April 13, 2018

Speculation over whether Trump will fire Mueller, Rosenstein or even Attorney General Jeff Sessions Jefferson (Jeff) Beauregard SessionsGOP set to release controversial Biden report Trump's policies on refugees are as simple as ABCs Ocasio-Cortez, Velázquez call for convention to decide Puerto Rico status MORE grew after FBI agents conducted a raid on the offices, home and hotel room of Trump's personal lawyer, Michael Cohen, on Monday. In the days following, Trump has repeated that people have suggested to him that he fire the special counsel.

The president called Monday's raid a "disgrace" and an "attack" on the country in statements to reporters later that day.

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Dozens of House Democrats — though not Boyle — have indicated their support for impeachment in votes stretching back to last year.

A total of 66 Democrats have indicated support for impeachment so far, though the party's leadership has shied away from the issue, saying the special counsel investigation should be allowed to do its job.

Trump has said he's been cooperating with Mueller's team.

"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.”