FILE - In this Nov. 22, 1963 file photo, President John F. Kennedy waves from his car in a motorcade in Dallas. Riding with Kennedy are First Lady Jacqueline Kennedy, right, Nellie Connally, second from left, and her husband, Texas Gov. John Connally, far left. President Donald Trump, on Saturday, Oct. 21, 2017, says he plans to release thousands of never-seen government documents related to President John F. Kennedy's assassination. (AP Photo/Jim Altgens, File)