

Rumour goes the idea is to force others to peg their currency to the dollar in fixed exchange rates so they can stay the reserve currency and still re-industrialize. Tariffs are used to force others into that arrangement. With how trustworthy USA has been the last few months, countries are not going to be enthousiast about this.
And the way he’s talking about annexing other countries and changes opinion and policy on a dime is not a good sign to step into whatever scheme he finally unveils.