To be honest, martial law (or trying to have Biden and Harris arrested) is slightly-less far-fetched than launching nuclear weapons. I have no idea what Trump may actually do (maybe just steal or break some Whitehouse furniture and fittings? I really hope like any other letting agent they took a complete contents inventory when he moved in) but I'm sure the thought obsessing him at this moment is 'how can I stay President?'. He's a narcissist, obsessed with winning, this must be a huge psychological crisis for him.
Also, not sure "blaze of glory" is the right term to describe that hypothetical conflagration. "Apocalypse of self-pity" or "Narcissistic Inferno", maybe?