In an earlier post I asked if the President of the United States have immunity for criminal acts that seem to include murder and insurrection. That is a question before the Supreme Court. They could have just let the finding of the appeals court stand but they decided to take on this ridiculous claim and delay justice.
The ridiculous claim includes the ability to murder at will unless an extremely unlikely impeachment conviction happens. See License to Kill and Rule).
Has it occurred to the Justices that the target could be one or more of them? It could be a member of Congress who opposed something the President wants. It could be a reporter. The list goes on and on.
Does the Supreme Court need to make a list of crimes a President can do without consequences? I think that it would be more sensible to just reject this claim.