A group of GOP lawmakers is voicing concerns that the Republican Party isn't confronting its losses in the November midterms and is not taking steps to learn from what led to Democrats flipping at least 40 seats in the House.

“[There has not been] any party lookback or leadership lookback and it does worry some of us," Rep. Adam Kinzinger Adam Daniel KinzingerFox News reporter defends confirming Atlantic piece despite Trump backlash: 'I feel very confident' GOP lawmaker defends Fox reporter after Trump calls for her firing Lindsey Graham: 'QAnon is bats--- crazy' MORE (R-Ill.) told The New York Times in a report published Sunday.

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Kinzinger's comments have been echoed by other GOP lawmakers, including Elise Stefanik Elise Marie StefanikRepublicans cast Trump as best choice for women The Hill's Morning Report - Presented by Facebook - Pence rips Biden as radical risk GOP women offer personal testimonials on Trump MORE (R-N.Y.).

Stefanik said that “there has been close to no introspection in the GOP conference and really no coming to grips with the shifting demographics that get to why we lost those seats."

“I’m very frustrated and I know other members are frustrated," she said, adding that she's planning to alter her political action committee in an effort to help women win GOP primaries in 2020.

Seizing on opposition to 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, Democrats surged to the majority in the House during this year's midterms, flipping at least 40 seats in the lower chamber.

“It’s clear to me why we lost 40 seats; it was a referendum on the president, but that’s an extremely difficult proclamation for people to make because if they were to say that they’d get the wrath of the president," outgoing Rep. Ryan Costello Ryan Anthony CostellloTrump struggles to stay on script, frustrating GOP again Bottom line Former GOP Rep. Costello launches lobbying shop MORE (R-Pa.), a frequent Trump critic who announced his retirement earlier this year, told the Times.

The Democratic Party gained its most seats in the House since 1974 in the election, according to the Times.

The losses have concerned some about the leadership of the party. House officials indicated to the newspaper that they would try to put together an after-action report related to the midterms.

However, it is unclear how comprehensive the report would be. In addition, many leaders in of the Republican Party have declined to open up about the party's losses in the House and why their races may have played out the way they did.

The Times notes that Rep. Steve Stivers Steven (Steve) Ernst StiversBusiness groups back pandemic insurance bill modeled on post-9/11 law National Retail Federation hosts virtual 'store tours' for lawmakers amid coronavirus Stronger patent rights would help promote US technological leadership MORE (R-Ohio) said he did not want to play the "blame game" when asked about certain suburban incumbents losing races.

Since the midterms, Republicans have chosen Rep. Kevin McCarthy Kevin Owen McCarthyMcCarthy's Democratic challenger to launch first TV ad highlighting Air Force service as single mother Trump asked Chamber of Commerce to reconsider Democratic endorsements: report The Hill's Morning Report - Sponsored by The Air Line Pilots Association - White House moves closer to Pelosi on virus relief bill MORE (Calif.) to serve as the minority leader when the Democrats seize control next month. Lawmakers also selected Steve Scalise Stephen (Steve) Joseph ScaliseHouse GOP slated to unveil agenda ahead of election House panel details 'serious' concerns around Florida, Georgia, Texas, Wisconsin elections Scalise hit with ethics complaint over doctored Barkan video MORE (R-La.) to serve as minority whip.