Probably turning the keys to Federal Payment system over to an Expat with triple citizenship, overriding security clearances for even classified veiwing access, much less active control and reprogamming authority, using Expat operatives. It is certainly not ethical, in terms of simple conflicts of interests, considering the number of government contracts he receives money through, and due to him being the chief financier of buying Trump into office.
But, like I said her or elsewhere, what is legal or illegal depends on if there is an agency to prosecute. There isn't, as far as the present government is concerned. Theoretically, you could rob a Federally insured bank, normally illegal, but if the Feds refuse to prosecute, you get to walk and enjoy the money. Laws are only valid, if enforced. Look at New York City, where prostitution is legal, as the District Attorney made and announce decision it would not be enforced against the prostitutes themselves, while he was in office. So, still on the books, but made meaningless.