Is there any distinction between nã po'e and ka po'e? The examples seem to use both interchangeably.
Yes! We included the "ka poʻe" and "nā poʻe" examples specifically because both can mean "people", in general.
I'm late, but nã indicates the word is plural, ka/ke means it is singular
Yes, the question is what difference it makes for 'people' as that's a plural word in English and it isn't entirely clear how it works in Hawaiian.