Was there even a duck (or mice, btw) story with (excluiding foreign countries, and perhaps the Life and Times) some kind of political officer above the city level? [Well, in "The Swamp of No Return" there was entire branchs of government, but even these seems Duckburg only - forget; only in the Portuguese translation]
In the PKNA issue "Nothing Personal" (PKNA 34) Angus Fangus is already governor and actually running for president. The TvTropes page points out that in real life USA this would be impossible since he was born in New Zealand.