News Jan. 6 committee subpoenas former DOJ official Jeffrey Clark, accused of attempting to overturn 2020 election October 13, 2021 Kevin Johnson and David Jackson, USA TODAY Comments Off on Jan. 6 committee subpoenas former DOJ official Jeffrey Clark, accused of attempting to overturn 2020 election Clark has emerged as a central figure in Donald Trump's efforts to deny President Joe Biden's election. The panel is investigating the Capitol riot.