It is. It's not quite as deviant as, say, taking advantage of your position as the primary financier of an under-18 beauty pageant to walk into the dressing room at will so that you can ogle the naked children; however, when you are the president of the United States, there is an undeniable and overwhelming power dynamic that exists between you and the office employees who work for you which makes even hinting at a sexual interest in them inappropriate and ethically-problematic; actually pushing for and engaging in a sexual relationship with them is unavoidably abusive even if the activity is by all appearances consensual.