One of the most important duties of any head of state obviously would be serving as the nation's chief diplomat.
If one were trying to go down in history as our worst President ever, it would be very challenging to get a faster start at it than by pissing off two of our three largest export markets before even making it through the first week on the job.
As individual countries go, our 2nd and 3rd largest export markets are Mexico and China. Together, they buy almost a quarter of our total exports.
Thanks to our current President's "diplomacy", our 3rd largest export market has found it necessary to move their nuclear missiles within striking distance of us ... ya' know, just in case. And the citizens of our 2nd largest export market have begun a large-ish boycott of American companies.
So it's been a stellar week for America, right?