Special counsel Jack Smith needs to make one particular, simple argument at Thursday’s Supreme Court hearing to make former President Donald Trump’s claim of immunity from prosecution come crashing down, explained former federal prosecutor Joyce Vance on her “Civil Discourse” blog. This comes as the Supreme Court is set to hear oral arguments in Trump’s immunity appeal on Thursday, after having lost his claims in every lower court where the matter was raised. The fate of Trump’s federal election conspiracy trial could hinge not just on what the justices decide, but how quickly they decide it, …