Rep. Markwayne Mullin is slated to introduce a resolution Wednesday that would expunge former President Donald Trump's second impeachment that followed the riot at the Capitol on Jan. 6, 2021.

The Oklahoma Republican's resolution seeks to condemn a "rabid partisanship the Democrats displayed in exercising one of the most grave and consequential powers with which the House is charged," according to a copy the Washington Examiner obtained from Mullin's office. Early draft copies of the resolution were reported on Tuesday, though the support from New York Rep. Elise Stefanik, the No. 3 Republican in the House, was announced Wednesday.

REP. MARKWAYNE MULLIN INTRODUCES RESOLUTION TO EXPUNGE TRUMP'S FIRST IMPEACHMENT

Mullin used the resolution to address grievances over the 2020 election, noting that Trump won 18 of the 19 bellwether counties that have in the past corresponded with the victor of the presidential election. The bill highlights changes in voting laws in many counties, also noting some state officials who have “vociferously opposed" election recounts.

“The second impeachment of President Trump was just as much a sham as the first,” Mullin told the Washington Examiner. "Impeachment is the gravest of charges, and the liberals themselves showed us how unserious they were in their blind urgency to act."

The resolution proposal comes as Oklahoma is preparing to hold primary elections next month on June 28. Mullin is vacating his House seat for a bid to run in a crowded Senate race after Sen. Jim Inhofe announced earlier this year he planned to retire with four years left in his term.

Mullin, a former MMA fighter, was notably photographed inside the Capitol on Jan. 6 attempting to ward off a mob from getting to the House floor. Nevertheless, the four-term representative exercised sympathy for Trump's unverified fraud claims and contended with “the legitimate concerns held by protesters," according to the resolution.

Days following the riot at the Capitol by mobs of his supporters, Trump was impeached in the House for the second time, on Jan. 13, with the help of 10 Republicans. Although seven Republican senators voted to convict the former president on Feb. 13 last year, he was acquitted in the Senate in a 57-43 vote.

The Oklahoma representative previously introduced a resolution in March to expunge Trump's 2019 impeachment for allegedly leveraging U.S. military aid to Ukraine for political favors, specifically investigations of President Joe Biden's family. Mullin's previous measure included support from other conservatives, including Rep. Barry Moore (R-AK), Rep. Greg Steube (R-FL), and Rep. Ronny Jackson (R-TX).

Despite the support from Stefanik and other Republican lawmakers, such as House GOP Conference Vice Chairman Mike Johnson (R-LA), a resolution of its kind faces a steep uphill battle for passage in the Democratic-led House.

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"From the beginning of this sham process, I stood up against Nancy Pelosi’s blatant attempt to shred the Constitution as House Democrats ignored precedent and failed to follow the legislative process," Stefanik told Fox News in a statement.

The New York Republican also noted Trump was "rightfully acquitted," calling the 2021 impeachment a "sham smear" that was aimed at not only the president but "millions of patriots across the country."