WASHINGTON — 4 Home Republicans together with Consultant Kevin McCarthy, the minority chief, signaled on Thursday that they’d not cooperate with subpoenas from the committee investigating the Jan. 6 assault on the Capitol, posing a dilemma for the panel that would have broad implications for the inquiry and for Congress itself.

Representatives Jim Jordan of Ohio, Scott Perry of Pennsylvania and Andy Biggs of Arizona every despatched letters to the committee objecting to the investigation forward of the depositions scheduled for this week, and Mr. McCarthy, of California, filed a court docket temporary arguing the panel’s subpoenas are illegitimate.

In a press release, Mr. Perry referred to as the Democratic-led committee a “kangaroo court docket” and accused the panel of “perpetuating political theater, vilifying and destroying political opponents.”

The Republicans’ resistance might hinder the committee’s investigation, leaving unanswered questions in regards to the lethal mob assault on the Capitol on Jan. 6, 2021, that left greater than 150 law enforcement officials injured. It is going to additionally possible power the panel to resolve whether or not to pursue felony contempt of Congress fees in opposition to the lads, which might immediate a authorized showdown whose consequence might set a precedent for future congressional investigations.

Mr. Perry, Mr. Biggs and Mr. Jordan have been summoned to testify this week, with Mr. McCarthy and Consultant Mo Brooks of Alabama scheduled for subsequent week.

CNN earlier reported that Mr. Perry and Mr. Biggs had despatched letters to the committee objecting to the subpoenas. Mr. Brooks didn’t reply to a request for remark.

The lads have employed barely totally different techniques in resisting the subpoenas. Whereas Mr. Perry refused to seem — his lawyer acknowledged flatly that the congressman “declines to seem for deposition on Might 26 and requests that you simply withdraw the subpoena” — Mr. Jordan issued a prolonged checklist of calls for to which the panel was unlikely to agree.

Mr. Jordan, who’s in line to change into Judiciary Committee chairman ought to his celebration take management of Congress after November’s midterms, demanded “all paperwork, movies or different supplies within the possession of the choose committee” for use in his questioning and any materials the panel has during which his identify seems.

“Your try and compel testimony a few colleague’s deliberations pertaining to a statutorily prescribed legislative matter and an essential constitutional perform is a harmful escalation of Home Democrats’ pursue of political vendettas,” Mr. Jordan wrote to Consultant Bennie Thompson, Democrat of Mississippi and chairman of the committee.

A spokesman for the committee declined to remark.

The lads’s resistance got here as 22 former Republican members of the Home urged them to cooperate with the panel.

“We perceive you’ll have issues about this train of the committee’s subpoena energy,” the previous members wrote of their letter, posted to Medium. “Certainly, beneath most circumstances, we’d strongly counsel in opposition to compelling the testimony of sitting members of Congress. However the distinctive nature of this circumstance is obvious: one during which sitting members might have firsthand information concerning an assault on our authorities. The easiest way to make sure a full and honest accounting of what occurred earlier than and on Jan. 6 is so that you can present your understanding of the occasions and to clarify it to the American individuals.”

The committee issued the subpoenas this month because it dug deeper into the position Republicans performed in makes an attempt to overturn the 2020 election.

Mr. Perry, who coordinated a plan to attempt to change the performing legal professional normal after he resisted Mr. Trump’s false claims of widespread voting fraud, argued in a letter to the committee that there was “nothing improper” about his actions.

“The committee is with out authority to challenge the subpoena, and we respectfully request that it’s instantly withdrawn,” his lawyer, John P. Rowley III, wrote.

The panel has been informed by not less than one witness that Mark Meadows, the previous White Home chief of workers, burned paperwork within the fire in his workplace after a gathering with Mr. Perry, an individual aware of the committee’s exercise stated on Thursday. The data was first reported by Politico. The Instances reported on Wednesday that the committee had data that Mr. Meadows had used his fire to eliminate paperwork.

Mr. McCarthy, together with Consultant Steve Scalise of Louisiana, the No. 2 Home Republican, filed a short in assist of Stephen Okay. Bannon, a Trump ally who has been indicted on fees of contempt of Congress after he didn’t adjust to a subpoena from the committee.

Within the temporary, legal professionals for Mr. McCarthy argued that the committee’s subpoenas have been illegitimate as a result of, they stated, the panel is just not following the principles of the Home concerning the variety of members of the committee and Republicans’ position on the panel. A number of judges have already rejected that argument in different fits.

Mr. Bannon is trying to have the contempt fees dismissed, and Mr. McCarthy and Mr. Scalise sided with him, arguing the Jan. 6 committee’s pursuit of Mr. Bannon might trigger “potential injury” to the establishment of the Home.

The panel’s transfer to compel cooperation from the Republicans was extensively seen as unprecedented within the trendy historical past of congressional investigations. Within the Home, subpoenas are virtually by no means issued outdoors of the Ethics Committee, which is charged with investigating allegations of members’ misconduct.

Earlier than sending their letters, the Republicans beneath subpoena privately mentioned how finest to reply, based on individuals aware of their pondering who described it on the situation of anonymity. Some argued there was a transparent political profit to defying the committee — as a result of former President Donald J. Trump’s base would virtually actually look favorably on the transfer — however some are also apprehensive about weakening the authority of their very own subpoenas if their celebration takes over Congress.

Mr. Thompson has stated that if the lads don’t comply, another choice past a contempt cost could possibly be a referral to the Ethics Committee.

Maggie Haberman contributed reporting.