Democrats leading six House committees demanded the Justice Department release special counsel Robert Mueller’s full report to Congress by April 2, citing outstanding questions they claim were not answered in Attorney General Bill Barr’s summary of the Russia investigation provided to lawmakers Sunday.

“Your four-page summary of the Special Counsel’s review is not sufficient for Congress, as a coequal branch of government, to perform [its] critical work,” the lawmakers, including House Judiciary Chairman Jerry Nadler of New York and House Intelligence Committee Chairman Adam Schiff of California, wrote in a letter to Barr. “The release of the full report and the underlying evidence and documents is urgently needed by our committees to perform their duties under the Constitution.”