Why is the US Supreme Court taking so long over Trump?

How long do you need to make a decision about whether Donald Trump should be immune from prosecution for various alleged crimes he is accused of committing before, during and after his presidency? We've still heard nothing from the US Supreme Cort justicies who have been looking at this issue since March. They are the top of the American legal tree, so they have to make a thoroughly good job of it because once they have decided, it will be an historic precedent that will affect all future presidencies, especially Trump's if he wins in November. So, a big deal. Nevertheless, for us mortals the answer seems pretty fundamental. No citizen, whether the president or attorney general or pop icon or roadsweeper should be above the law. The president should be accountable for everything in a democracy because he or she is the leader chosen by the electorate to represent them and do them proud and keep them safe. So they have to show that they act at all times under the law and, in America, in accordance with the constitution drawn up by the founding fathers. Whether Trump is found guilty of all the offenses with which he has been charged, in paticular the one where he is accused of trying to interfere in the result of the 2020 election, the key point for the Supreme Court is to decide the general guiding principle for those who attain the highest political office in the land, not specifically or uniquely for Trump. Whatever the Supreme Court judges decide, it will of course initially have an instant impact on Trump's future presidential hopes, but the ruling will be there for ever unless or until it is reversed. So, yes, it's a big moment. Yet it is still a mystery why it is taking so long to come to what most sensible people believe is the right decision. Is it possible that the judges, split between Trump and Democrat appointees will decide that the issue is not so cut and dried as it should be and that there might be circumstances in which some form of prosecution immunity might be justified or even necessary for national security reasons? In other words, are the judges trying to come up with a complex legal formula which might give Trump a bit of breathing space.?Even a hint of wiggle room on the question of immunity for presidents would be dangerous and bad for democracy. It seems the ruling from the Supreme Court might come at the end of this month. Perhaps, like with the controversial abortion ruling, there will be a carefully-laid leak to test the waters.