The obfuscation of using N Mariana Islands is really just a diversion that Guam, one of its constituents, is the real source of the overall GDP of “the islands” (based on the three primary US Military Expenditures there.)
In other words. The Executive Administration has a lot of “pull” and influence there.
Guam passed a “Shall Issue” carry bill over a year ago.
Guam is relatively conservative, compared to the CNMI.