Democrats wanted a panel of outside experts to investigate the Jan. 6 insurrection. Instead they might have to deal with the Trump wing of the House GOP.

The House voted Wednesday, 222-190, to create a select committee with a weighty mandate to dig into the worst attack on the Capitol since the War of 1812. Two Republicans, Reps. Liz Cheney (R-Wyo.) and Adam Kinzinger (R-Ill.), voted alongside every Democrat to establish the 13-member panel.

But as Democrats prepare its roster, both parties are still unsure about which Republicans, if any, will join its ranks — a decision that will dramatically shape the direction of the investigation.

Speaker Nancy Pelosi will have the final say over the panel’s GOP members, assuming House Minority Leader Kevin McCarthy appoints them at all. But many in her caucus are still anxious about the prospect of Republicans starting another bitter fight by trying to appoint members who voted against certifying President Joe Biden’s win.

Even worse, in their minds, would be GOP riot investigators who some Democrats view as having abetted the attack.

“The issue is that … there are indications that some of these folks were in on it. And we can't have folks who were in on it in the investigation,” Rep. Alexandria Ocasio-Cortez (D-N.Y.) said in an interview.

“If we are to be serious about finding out the truth, it seems incongruous to appoint people to a fact-finding committee who have really leaned into the big lie,” added Rep. Mondaire Jones (D-N.Y.)

Pelosi has signaled she wants one of her eight appointments to the Jan. 6 committee to be a Republican, and Democrats speculate that outspoken Trump critics like Cheney and Kinzinger could be chosen. The speaker declined to say Tuesday whether she would veto any GOP select panel members who opposed certifying Biden's victory, and declined again Wednesday to discuss the committee's makeup.

"I will be making whatever statement I make about the select committee when I do, and that is not right now," Pelosi told reporters ahead of the vote, which comes nearly six months after the violent attack. The vote was an emotional one for many members who were trapped in the chamber that day, as well as for members of the Capitol Police and D.C. Metropolitan Police who were invited to attend by Pelosi's office.

After voting to approve the commission, Pelosi, Cheney, and other House members walked up to the gallery to talk with the law enforcement responders, including Capitol Police officer Harry Dunn and D.C. Police officers Michael Fanone and Daniel Hodges. The mother and partner of the late Capitol Police officer Brian Sicknick, who died after responding on Jan. 6, attended the vote in the gallery.

Many Republicans who have condemned Trump for his role in the Jan. 6 attacks, including voting to impeach the former president, have publicly said they don’t want to serve on the committee and opposed its creation on the floor Wednesday.

Rep. Jaime Herrera Beutler (R-Wash.), who voted to impeach Trump and revealed details of a key conversation between McCarthy and Trump, said in a Tuesday statement she would oppose the "partisan" select committee and would not serve on it. Kinzinger, on the other hand, Kinzinger, on the other hand, said Wednesday in a statement he voted for it "because the truth matters."

Cheney said in a statement that the select committee was the "only remaining option" after Senate Republicans' filibuster of the independent commission. The former member of House Republican leadership reserved some criticism for Trump as well, saying that he "on an almost daily basis" repeated "the same statements that provoked violence before."

GOP leaders are staying tight-lipped about how much they will engage on the select committee, even as far-right Trump boosters such as Reps. Marjorie Taylor Greene (R-Ga.) and Matt Gaetz (R-Fla.) raise their hands to be picked. Though investigations are pending, there is no evidence that they or any other GOP lawmakers were directly involved in planning the Jan. 6 attack, despite one Democrat's allegation that some Republicans led pre-riot "reconnaissance tours."

Asked about his five picks for the panel, McCarthy has repeatedly declined to comment on who he might choose. He might also decline to appoint members at all, a decision that could help the GOP leader avoid such a highly charged issue within his conference. Out of their roughly 200-member conference, two-thirds voted not to certify the president’s Electoral College win.

Rep. Jim Jordan (R-Ohio), a close Trump ally, told POLITICO that no decisions had been made yet by McCarthy,

“I don’t think there’s been any decision made from from the leader on what he’s gonna do. I’m sure he will consult with the conference," Jordan added, but "he may not appoint anyone. You’ll just have to wait."

House GOP leaders did not formally whip against the select committee but recommended their members vote “no."

Some Democrats say they privately feared McCarthy may try to appoint his most incendiary members, conservatives who are also most likely to use their committee seats to defend Trump. That group includes Greene, Gaetz and Rep. Lauren Boebert (R-Colo.), all of whom many House Democrats say would seek to effectively sabotage the panel’s work.

“What I wanted was an independent commission,” said Rep. Madeleine Dean (D-Pa.), who served as a prosecutor against Trump in his post-insurrection impeachment trial. “Of course there have to be Republicans on here ... They will reveal themselves, either to do their duty or not. It's up to them.”

Kinzinger shrugged at the prospect of having Republican colleagues who voted against election certification named to the panel.

“That wouldn't be cool, but who knows,” he said.

Democrats’ initial proposal to investigate the Capitol siege involved an independent commission modeled after the one that investigated the terrorist attacks of Sept. 11, 2001. The House ultimately voted to establishing that commission — a bill drafted by Rep. Bennie Thompson (D-Miss.) and John Katko (R-N.Y.) — but McCarthy and his leadership team pressured many in their party to oppose it.

Roughly three dozen Republicans backed the commission; many of them, including Katko, opposed the Democrat-led committee on Wednesday.

Rep. Brian Fitzpatrick (R-Pa.), a co-chair of the Problem Solvers Caucus, which supported the commission, said the structure of the bipartisan panel made “sense" but questioned the partisan nature of the select committee.

“I don’t know if the public is going to have confidence when the rules of the game are skewed the way they are,” he said.

Asked if he had concerns about who McCarthy appointed, Fitzpatrick said: “That’s part of the problem with the way this plan appears to be moving forward.”

The failed commission, which would have barred sitting members of Congress from serving on it, was blocked by Senate Republicans. Pelosi and her team ultimately decided to pursue a select committee, which includes seven members hand-picked by the speaker and five that she's permitted to choose after “consultation with the minority leader.”

“When we know that the Republicans are going to act out in the way that they do, I don't like rewarding them by saying, ‘Oh, we're gonna just not do things,’” said Rep. Andy Kim (D-N.J.), who reiterated the need for the Jan. 6 panel after Republicans blocked the commission.

Kim compared the partisan rancor over Jan. 6 to some Republicans’ refusal to accept that the coronavirus was a real threat after Democrats established a select committee on the virus last year.

“We had members on that committee that just disagreed with basic science and medicine ... But it was still important that we had the committee,” he said.

McCarthy and House GOP leaders for months sought to quell internal drama over the fallout from the insurrection, which led 10 of their members to vote to impeach Trump. They've mostly rebounded since then as the party of Trump, having cast aside Cheney from their leadership for her continued condemnation of the former president.

But the GOP leader still faces percolating extremism within his ranks, including several members who have downplayed the violence on Jan. 6. This week, for instance, McCarthy is dealing with far-right Rep. Paul Gosar (R-Ariz.), who reportedly will attend a fundraiser with white nationalist Nick Fuentes, who supported the "Stop the Steal" effort that bolstered Trump's baseless election fraud claims.

Asked about the event, Gosar said this week that "I’ve never heard anything like that. I have nothing on my schedule.”

Notably, not every Democrat said it would be problematic for any Republicans who voted against certifying Biden’s win on Jan. 6 to serve on the select panel.

Rep. Ann Kuster (D-N.H.) said she has spoken with several Republicans who opposed certification on the floor — because, “in the heat of the moment, [they] had planned to take that vote and took that vote” — but now publicly affirm Biden as the president.

“I would be more concerned about what their approach is now than a decision they made in a vote on Jan. 6,” Kuster said. But she added that she drew the line at Republicans who are downplaying the riot in the Capitol or continuing to question Biden’s election.

Olivia Beavers contributed to this report.

House Democrats on Friday unveiled long-awaited details on Congress’ response to the Jan. 6 insurrection at the Capitol, including billions to address security flaws exposed by the siege and a bipartisan Sept. 11-style commission to investigate the root of the attack.

House Appropriations Chair Rosa DeLauro (D-Conn.) released a $1.9 billion emergency funding bill that would provide tens of millions of dollars to the Capitol Police department, foot the bill for deploying National Guard soldiers at the complex and authorize funding for “future” security needs such as a retractable fence system, among other provisions.

“The needs are urgent, so it is imperative we swiftly pass this legislation to protect the Capitol and those who work and visit here,” DeLauro said in a statement.

The bill would set aside $200 million for a quick-reaction force to assist the Capitol Police, which will receive body cameras for the first time. The bill also includes millions of dollars for mental health assistance and overtime for a Capitol Police force long understaffed and still reeling from the deaths of several officers in the aftermath of the insurrection. One officer, Howard Liebengood, died by suicide in the days after the attack, and the bill would rename the Capitol Police’s wellness center for him.

Lawmakers are also moving ahead with a bipartisan commission to investigate the events leading up to the attack. That plan has the backing of the GOP’s top negotiator on the issue, though not House Minority Leader Kevin McCarthy, who is still arguing that the panel’s scope should expand beyond the Jan. 6 attack.

The two major developments cap an intense week in the House that ripped open unhealed wounds from the Capitol siege. Certain Republicans have downplayed the insurrection in public comments as lawmakers engage in bitter confrontations. Some Democrats are eyeing the commission and debate over the security bill as a test of whether House members have any chance of moving forward together after the attack, or if the partisan split will only worsen.

“It is imperative that we seek the truth of what happened on January 6 with an independent, bipartisan 9/11-type Commission to examine and report upon the facts, causes and security relating to the terrorist mob attack,” Speaker Nancy Pelosi said in a statement.

The bill to establish the Jan. 6 commission could come to the floor “as soon as next week,” Pelosi announced Friday, noting that the panel is modeled after a bipartisan study of events leading up to the Sept. 11 terrorist attacks. That floor vote will likely be followed by the emergency funding bill, as Democrats hope to pass both before leaving for the Memorial Day recess.

Democrats are powering ahead with their response to the Capitol attack after months of gridlock and partisan sniping that had stalled progress on the security funding and commission.

And while McCarthy said Friday he hadn’t formally signed off on the commission agreement, the deal between House Homeland Security Committee Chair Bennie Thompson (D-Miss.) and ranking member John Katko (R-N.Y.) does include some key concessions to Republicans.

In changes sought by Republicans, the proposed 10-person commission includes an even split between members chosen by Republicans and Democrats. It also ensures members of the commission can only issue subpoenas in a bipartisan manner. The commission is only able to issue subpoenas through a majority vote, or by agreement between its chair and vice chair. Democrats choose the chair. Its report will be due by the end of the year.

McCarthy and other Republicans had wanted the commission to investigate left-wing violence, but its focus will be limited to the Jan. 6 attack and factors leading up to it.

The GOP leader told reporters Friday morning that he hadn’t seen details of the agreement, and therefore hasn’t formally signed off, reiterating that he doesn’t want the commission to only focus on the Jan. 6 siege.

“I know Nancy Pelosi played politics with this for a number of months. You've got to look at the build-up before, and what’s been going on after,” McCarthy said.

Katko, who led negotiations for the Republicans, was one of several GOP lawmakers who immediately pushed for this type of commission to learn how the mob was able to storm the Capitol. The New York Republican was also one of 10 House GOP lawmakers who voted to impeach Trump for his role in the attack.

In a statement, he appeared to address his fellow Republicans’ concerns that the commission address issues beyond Jan. 6.

“Unfortunately the Capitol remains a target for extremists of all ideologies, as we also witnessed during the April 2 attack that took a Capitol Police officer’s life,” Katko said. “That’s why we must do everything we can to ensure nothing like this can ever happen again.”

Democrats can still proceed without McCarthy’s explicit backing, as several other House Republicans — including those who voted for impeachment — are expected to back it on the floor.

"Inaction — or just moving on — is simply not an option. The creation of this commission is our way of taking responsibility for protecting the U.S. Capitol," Thompson said in a statement.

Democrats will also likely be able to pass the security funding bill even if they don’t secure support from any Republicans. But it could be tricky: Before the bill was released, some Democrats raised concerns with components of the sprawling bill.

That includes a small number of Democrats, such as Rep. Mondaire Jones (D-N.Y.), who have questioned whether Capitol Police should have more oversight requirements before receiving such a massive cash infusion.

Pelosi first announced plans for a commission in February, but Democrats and Republicans have spent months negotiating on the terms. The two parties had clashed repeatedly on what that commission should look like, from the makeup of its membership to subpoena power to whether it should expand the scope beyond Jan. 6.

Two decades ago, the exhaustive findings of the Sept. 11 commission became the basis for government-wide reforms in response to Al Qaeda’s 2001 attack on the World Trade Center and Pentagon. But the appetite for such reforms after the Capitol attack in Congress is more complicated, with many GOP lawmakers lining up behind Trump and some now downplaying the violence at the Capitol that day. One lawmaker, Rep. Andrew Clyde (R-Ga.), this week compared the mob’s behavior to “a tourist visit.”

Melanie Zanona contributed to this report.