First his protectionist/isolationist policies are putting him outside of the general milieu of nations states.
The USA cannot go it alone, it simply does not have the resources.
His tariff announcement was a complete economic and geo-political game changer.
They brought the USA debt to near collapse, with the realisation that huge bond holders like China could and would exercise their power to bring the USA to its knees.
This has massive implications for Trumps planned big tax cuts next autumn and his ability to fund them through debt.
Trust in the USA has melted away, and very few people will be willing to buy US bonds as a secure bet.
In fact what has happened this week has massive implications for geo-politics in defence, soft power and willingness for countries to cooperate.
Trump has been a disaster for the USA