The letter was written into the record by Sanders and another senator. Warren was attacking a sitting senator which is against the rules for a very good reason. In the past that got people shot and started fist fights so the rule was put into place. She could have complained about his qualifications all day long but not by attacking him personally which she was doing. She basically was calling him a racist pig and that is an insult. she being a leftist slime thought that was okay. it is not okay.