A senior aide and retired federal judge who advised former U.S. Vice President Mike Pence are due to testify Thursday in the House of Representatives committee investigating the January 6, 2021 Capitol attack, the committee said Wednesday. Greg Jacobs, who served as Pence’s adviser, and retired U.S. Court of Appeals Judge J.J. Michael Lutig, who was an informal adviser, is set to testify at the third of six public hearings scheduled for the commission this month. Jan. 6 commission releases video of Capitol tour before attack The hearing is set to focus on Pence’s role that day in overseeing congressional formal certification of Joe Biden’s 2020 election victory over then-President Donald Trump, who has made false allegations that the election was rigged through widespread electoral fraud. Subsequent hearings are expected to focus on issues such as what the Democratic-led committee describes as Trump’s efforts to replace Justice Department officials with appointees who would help advance his efforts to overturn the election results. Proponents of her case have been working to make the actual transcript of this statement available online. Some protesters shouted “hang Mike Pence” and set up a makeshift gallows outside the Capitol. The committee is examining Trump’s contacts with Pence, urging him to refuse to ratify the election and the voices of the rioters that Pence should be hanged. Pence rejected Trump’s demands to block the certification. Pence said in February this year that Trump, under whom he was vice president for four years, was wrong to believe that Pence had the power to overturn the election result. “I had no right to overturn the election,” Pence told a Florida audience. The Morning and Afternoon Newsletters are compiled by Globe editors, giving you a brief overview of the day’s most important headlines. Register today.