We have heard Donald Trump say publicly that he would date his daughter if was not her father. As he paraded her on television, he described his daughter as having a “hot body”. We have seen him parade her on a television show in an outfit that displayed her assets.
The comments were startling then and now. They are not what we expect a father to say about his daughter. When a father says that about his daughter, he puts her in a psychologically unhealthy place. She has to deal with him as a potential sexual partner if only at a hypothetical level. She has to think about him as a sexual partner where she would not have previously. Moreover, the comments have a wider effect within the family. When a father makes that comment, he puts his daughter into a mother role, which changes her relationship with her siblings. In this case, Eric Trump and Donald Trump Jr will look at her differently as they will know that they cannot date their father. He has not identified them as potential sexual partners. He has set Ivana apart.
What about the other Trump children?
What is overlooked in Donald Trump’s statement is its effect on his other children. The comment forced his sons to consider their sister, his daughter, as his potential sexual partner. They face a similar psychological challenge. He forces them consider what it means for her to be the favourite for his affections. Moreover, they have to confront the situation that such sexual thoughts are no longer taboo within the family. Through his statement, whether he wanted to or not, he models an acceptable form of behaviour for his sons to emulate. A further consequence is that Eric and Donald Jr will have to explain those comments to wives and their children.
What does this do to Ivanka’s marriage?
Ivanka will have to explain the comments to her children and to her husband. With that statement, Donald Trump was telling Ivanka’s future husband of his status. The prospective husband has to consider him as a potential sexual and emotional rival. Donald continued to display his status in other settings such as at the Republican National Convention.
Is it healthy for a child to live in their father’s sexual shadow?
The one place where they could be expected to carve out their own identity, their sexual life, is now removed. We know the children live in their father’s professional shadow and now they live within his sexual shadow. They cannot escape as family and business become the same thing. In the end, Donald Trump has ensured that his children cannot see themselves except through him.
Never apologize, never explain is not a healthy temperament for a President.
What is inescapable is that Trump has never apologised for his behaviour and his children have never publicly rebuked his statements. He has never considered how his words would affect his children. Is that behaviour fitting a future President?
 In 2003, he told Howard Stern, “You know who’s one of the great beauties of the world, according to everybody? And I helped create her? Ivanka. My daughter, Ivanka. She’s six feet tall, she’s got the best body. She made a lot of money as a model—a tremendous amount.” http://www.mcclatchydc.com/news/politics-government/election/article90790987.html
 “The Trump Organization has a unique culture. Everyone calls the boss “Mr. Trump.” Employees often eat lunch at the Trump Grill, in the lobby of Trump Tower, which offers a dish called Ivanka’s Salad. The higher you get in the company, the more the family and business blur. Michael Cohen, the executive vice-president of the Trump Organization, told the Jewish Chronicle, “To those of us who are close to Mr. Trump, he is more than our boss. He is our patriarch.”” http://www.newyorker.com/magazine/2016/08/22/ivanka-trump-and-jared-kushners-power-play
 A Trump family friend told me, “It’s a close family in many ways—except it’s all about Donald all the time.” He went on, “Donald only thinks of himself. When you say, ‘Donald, it’s raining today,’ he says, ‘It doesn’t matter, I’m indoors.’ ” http://www.newyorker.com/magazine/2016/08/22/ivanka-trump-and-jared-kushners-power-play