Former President Donald Trump was ordered on Friday to testify under oath and provide documents to the House of Representatives committee investigating the January 6, 2021, attack on the US Capitol by his supporters.

The committee said it had sent a subpoena to Trump requiring documents to be submitted to the panel by November 4 and for him to appear for deposition testimony beginning on or about November 14.

Deposition testimony often refers to closed-door, videotaped questioning of a witness on the record. Such testimony could be made public and become part of a final report by the special panel.

“As demonstrated in our hearings, we have assembled overwhelming evidence, including from dozens of your former appointees and staff, that you personally orchestrated and oversaw a multi-part effort to overturn the 2020 presidential election and to obstruct the peaceful transition of power,” the committee wrote in a letter to Trump on Friday.

The committee is seeking a wide range of documents from Trump that would detail communications he may have had over a period of several months leading up to the January 6 riot and beyond with lawmakers, Oath Keepers and proud Boys members, as well as associates and former aides, including Roger Stone, SteveBannon, Michael Flynn and Rudi Giuliani.

Additional documents, text messages and other communications being sought relate to information detailing possible travel of people to the Capitol on January 6, 2021, communications relating to efforts to encourage state legislatures or lawmakers to take actions that would have delayed Congress’ certification of the presidential election or changes in states that would have certified an alternate slate of“electors” that would support naming Trump as the winner of the 2020 election.

Trump, who refers to the panel as the “unselect committee”, has accused it of waging unfair political attacks on him while refusing to investigate his charges of election fraud.