The development could be a major breakthrough for the committee, which has been trying for months to interview Ms. Thomas, who Gini says, about her communications with a conservative lawyer close to former President Donald J. . Trump. “I can confirm that Ginny Thomas has agreed to participate in a voluntary interview with the commission,” her attorney, Mark Paoletta, said in a statement. “As she has said from the beginning, Ms. Thomas is willing to answer the committee’s questions to clear up any misunderstandings about her work regarding the 2020 election. She looks forward to this opportunity.” Her partnership was previously reported by CNN. A spokesman for the commission declined to comment. The committee sought an interview with Ms. Thomas in June after it emerged that she had exchanged text messages with Mark Meadows, the White House chief of staff, urging efforts to challenge Joseph R. Biden Jr.’s victory. 2020 election. It also pushed lawmakers in several states to fight the election results. But it was Ms. Thomas’s interactions with John Eastman, a conservative lawyer who pushed Vice President Mike Pence to block or delay the certification of Electoral College votes on Jan. 6, 2021, that has most interested investigators. “We are specifically investigating the activities of President Trump, John Eastman and others as they relate to the Constitution and certain other laws, including the Election Counting Act, that set forth the process required for the election and inauguration of the president,” he said. The committee. The leaders — Representative Bennie Thompson, Democrat of Mississippi, and Representative Liz Cheney, Republican of Wyoming — wrote to Ms. Thomas. “The select committee obtained evidence that John Eastman worked to develop alternative voter lists to stop the counting of the January 6 election.” The committee obtained at least one email between Ms. Thomas and Mr. Eastman after a federal judge ordered Mr. Eastman to turn over documents to the committee from the period after the November 2020 election, when he was meeting with conservative groups to discuss the fight against of the elections. Results. The same judge said it was “more likely than not” that Mr Trump and Eastman committed two felonies as part of the effort, including conspiracy to defraud the American people. Mr. Paoletta has argued that the communications between Ms. Thomas and Mr. Eastman are of little value to the commission’s investigation. Ms Thomas’ cooperation comes as the January 6 commission enters its final months of work after a summer of high-profile hearings and prepares a wide-ranging report, which is expected to include recommendations on how to address threats to democracy highlighted by the insurgency and Mr. Trump’s attempt to overturn the election. Mr Thompson, the committee chairman, said the next and likely final hearing would take place on September 28. “We actually have footage of what happened that we haven’t used. we had important witness statements that we didn’t use,” Mr. Thompson said in an interview. “This is an opportunity to use some of that material.”