Spencer Platt/Getty Images

House Judiciary Chair Jerrold Nadler (D-N.Y.) issued a subpoena on Friday to obtain the full, unredacted version of Special Counsel Robert Mueller's report on Russian election interference and the Trump campaign's conduct surrounding the meddling, reports The New York Times.

The House Judiciary Committee approved the subpoena earlier this month, anticipating a desire for an unredacted report and Mueller's underlying documentation. The subpoena has now been fired off, demanding to see Mueller's evidence and summaries of key witness interviews by May 1.

If Attorney General William Barr ignores it, the Judiciary Committee could hold him in contempt, setting up a potentially lengthy court battle.

Nadler said the report was troubling and "it now falls to Congress to determine the full scope of that alleged misconduct." In addition to requesting "the full version of the report and the underlying evidence," House Democrats have called on Mueller to testify publicly to clarify some of his findings. Read more at The New York Times.