I’d guess that it means anyone who identifies himself as “Latino” in the census.
I agree that it’s nuts. Of course gerrymandering has been going on as long as electoral districts have been around (I believe the word itself dates to the early 19th century). All the racial-ethnic divisions do is give Democrats a way to be self-righteous about it, and thus get their way more often.
“Id guess that it means anyone who identifies himself as Latino in the census. . . “
My rule is to identify myself as Native American, inasmuch as I was born in America of 2nd and 3rd generation American parents descended entirely from Norwegian immigrants.