Anyone wanting to speak to the president must stop by her desk first. Leah Katz-Hernandez, 27, is the new White House receptionist. She is also deaf. “It’s a fantastic opportunity and also to show that deaf people can do anything,” she said through an interpreter, who is provided for her at work. With a desk just steps away from the Oval Office, Katz-Hernandez is usually the first to greet anyone — from world leaders to White House staff members — who has an appointment with the president or his top-level aides. She also oversees the White House guest book and...