If I recall its not the immunity case, but another case that makes Merchins process of a non-unanimous guilty verdict across several charges that sum up to twelve when combined as unconstitutional.
OK, here’s an article tying the immunity ruling and the New York case.
A lot of the evidence and testimony that Judge Merchan allowed was objected to by Trumps Lawyers as inadmissible due to Presidential Immunity.
The Supreme Court explicitly ruled that evidence related to official acts was subject to presidential immunity and inadmissible in court
This immunity barred evidence and witness testimony is so intertwined with the rest of the prosecutions case that it cannot be unwound
The case must be dismissed