In a 66-page filing with the U.S. Court of Appeals for the District of Columbia, attorneys for congressional investigators led by House General Counsel Douglas N. Letter vowed that Democrats on the Judiciary Committee would continue their impeachment inquiry into whether Trump committed obstruction of justice–regardless of the outcome of the House’s current “narrow impeachment” process premised on the president withholding military aid to the Ukraine in an apparent scheme to obtain an investigation into Joe Biden‘s son.

The Judiciary Committee’s separate impeachment investigation is based on the findings contained in the report on election interference and obstruction of justice produced by former special counsel Robert Mueller. According to Letter, Judiciary Committee Democrats are determined to obtain additional grand jury materials produced in the course of Mueller’s investigation that the Department of Justice has been just as determined to keep under judicial lock-and-key.