I didn't see in notables (forgive me if I missed it) that POTUS' twatt about the London mayor ha s his name spelled wrong (Kahn instead of Khan). I did a quick search and found this interesting thread read. No conclusions but I thought it was interesting as it relates the misspelling to a German newspaper article. Links to Q100.

(pic stolen from thread reader app entry)

https://threadreaderapp.com/thread/1135621197536870400.html