Congressional Whistleblower Protection Act of 2017 This bill amends the Congressional Accountability Act of 1995 to extend specified whistle-blower protections to employees of congressional offices and committees, the Office of Congressional Accessibility Services, the Capitol Police, the Congressional Budget Office, the Office of the Architect of the Capitol, the Office of the Attending Physician, the Office of Compliance, the Government Accountability Office, and the Library of Congress.