I think when Melania and Barron get there, things will be different...Ivanka is a daughter, Melania is the wife...a lot of power there...
Not in this case. Assuming Melania and Barron do move in, and I'm not convinced they will, Ivanka will still have more say over things than she will. Trump just depends on Ivanka more.
I don’t think there is anyone remotely as influential on the president as Ivanka. The fact that she is pretty much a straightforward northeast liberal has to be somewhat concerning.