My bet: the idea was floated (prob with Austin or Dallas as the target to cripple Texas and the South, not DC). The generals and admiral got wind of it and bluntly told obastard he would be summarily executed if it happened. So nothing happened except they lost their jobs.
The US military does still have our backs. That is the one thing I am sure of and the reason obastard is doing his level best to destroy military morale.
In my gut I believe that our military will not turn against us. But these out of control cops have me worried. Granted, they are the minority.
A general could not detonate a nuke, but he could have a nuke that was supposed to be placed in DC or Charleston dropped in the sea so that when it was detonated by those who could, it would go off on the bottom of the ocean. He would then be fired.
Autin and Dallas, TX are liberal strongholds.