So, every governor is nominally the head of their state’s National Guard until and unless called up by the Federal Government. In Texas, the administration of these groups is rolled under the Texas Military Department. So, since this is an internal operation, the TMD is the one managing everything (and doing so terribly). In addition to the “normal” National Guard, subject to Federal activation, TMD also includes the “Texas State Guard” which is a couple thousand dorks and has-beens who want to pretend they’re military. Historically, this has been fairly useful because they’re some extra grunts to help out when there’s a natural disaster, and whatever real TNG officer is on-site can tell them what to do. These days, though, it seems like a perfect place for militia types to park themselves with some faint color of official sanction, but I don’t presume to know if that’s happening to any significant degree.