The top House Judiciary Committee Democrat has delivered a final warning to Attorney General William Barr to comply with a subpoena for the full Mueller report and its underlying evidence or else face contempt of Congress proceedings.

In a letter to Barr on Friday, Judiciary Chairman Jerrold Nadler gave the Justice Department a 9 a.m. Monday deadline to respond to his letter affirming that it will comply with the subpoena — which called for Barr to supply the full Mueller report and underlying evidence to Congress by May 1 — or negotiate in good faith with the committee to reach a “reasonable accommodation.”

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So far, DOJ has stiffed the committee, citing legal statutes that restrict the attorney general from handing over some information underlying the Mueller report to Congress and claiming the committee does not have a “legitimate” reason to demand such information.

Nadler’s committee is conducting its own probe into whether President Donald Trump or anyone in his inner circle obstructed special counsel Robert S. Mueller III’s Russia investigation or has been involved in other corrupt activity.