House Intelligence Committee Chairman Adam Schiff said Sunday that the U.S. intelligence community is beginning to withhold documents on Ukraine from Congress as lawmakers prepare for the impeachment trial of President Trump.

“The NSA, in particular, is withholding what are potentially relevant documents to our oversight responsibilities on Ukraine but also withholding documents potentially relevant that the senators might want to see during the trial,” Schiff said, referring to the National Security Agency.

“The intelligence community is reluctant to have an open hearing, something that we had done every year prior to the Trump administration, because they’re worried about angering the president.”

Read more at The Hill.