From a story on cnn.com by Jake Tapper headlined “John Kelly goes on the record to confirm several disturbing stories about Trump”:

John Kelly, the longest-serving White House chief of staff for Donald Trump, offered his harshest criticism yet of the former president in a statement to CNN.

Kelly set the record straight with on-the-record confirmation of a number of damning stories about statements Trump made behind closed doors attacking US service members and veterans, listing a number of objectionable comments Kelly witnessed Trump make firsthand.