Amazon informed senators on Thursday that it instituted a new policy banning books that treat gender dysphoria as a mental illness from its platform. The e-commerce giant explained its policy, which had previously not been public, in response to a request for clarification from senators concerned about the banning of When Harry Became Sally: Responding to the Transgender Moment by Ryan T. Anderson. Amazon pulled the book from its shelves on February 21. “We have chosen not to sell books that frame LGBTQ+ identity as a mental illness,” said Amazon. Author Ryan T. Anderson pushed back on Twitter, saying the ban is based on misinterpretations of his book.