So, is this all 50 States, plus assorted territories, or a total of 50 States and territories? If the latter, who isn't taking part? The article links to a pie

So, is this all 50 States, plus assorted territories, or a total of 50 States and territories? If the latter, who isn't taking part? The article links to a piece from a week ago saying that half the US State's AGs were taking part in the investigation. Looking forward to hearing more about how broad this is.