Funny old business politics and taxes and very rich people (who may not be very rich at all) moving money around within a system which facilitates it.
I think we probably have a slightly different perspective to the Americans though; they love people who become obscenely wealthy - it is after all the American Dream; we're a bit more conservative about being rich, which is why the aristocracy only flaunt it with each other, not when they are nipping into Waitrose - they don't like ostentatious displays of 'new money" anymore than the rest of us.
Back to Trump; he will blame somebody else, he always does.