More than 175 former U.S. national security officials, including those from the Pentagon, State Department and CIA, have added their names to a statement signed last week by 15 former senior intelligence officials criticizing President Donald Trump's decision to cancel the security clearance of former CIA Director John Brennan.

New signatories to the statement include political appointees and career civil servants who worked in both Democratic and Republican White Houses.

A number of prominent individuals added their names to the new statement, released Monday, including top Bush and Obama administration officials such as former State Department and National Security Counsel lawyer John Bellinger, former Deputy Secretaries of State Anthony Blinken and William Burns, as well as former Undersecretaries of State Nicholas Burns, Wendy Sherman and Thomas Pickering.