Schiff accuses NSA of withholding Ukraine documents from Congress

House Intelligence Committee Chair Adam Schiff (D-Calif.) on Sunday accused the National Security Agency of withholding key documents from Congress related to Ukraine that could be relevant in President Trump's impeachment trial.Speaking to ABC News, Schiff said the NSA appears "to be succumbing to pressure from the administration," also saying "there are signs that the CIA may be on the same tragic course." Schiff said the documents could be important to the central allegation of Trump's impeac