No, desperate men do not start nuclear wars to save their financial ass, but, perhaps to save their personal reputation they might.  We keep thinking he wouldn't, he couldn't do that.  When are we going to learn?  The zebra has already shown us his stripes.

Trump's financial situation is desperate.  Reelection gives him access to money (bribes) from foreign leaders to keep his empire from collapsing and to keep him out of jail.  If convincing us the election is a fraud is not enough to keep him in power, what cards does he have left?  We keep saying, surely he wouldn't do that.   I think it is time to accept that he will do what you are thinking to save his ass.