On the point of the Constution and Federal Law against changing the rules of the election, the ruling was 9-0. It only became 5-4 on the equal protection ruling and the remedy concerning the re-count.
Regarding the inability of any authority to change the rules of a Federal election after the process started (in Floriduh's case, changing the counting and reporting rules in an Electoral College election), it was 9-0.
Regarding the complete lack of a Constitutional "remedy" for the Sore Loserman campaign, it was 5-4.
Regarding the failure to provide equal protection of the voters and their ballots, it was 7-2.