IIRC. THE USSC judgement was that the Florida Supreme Court could not unilaterally change Florida's electoral process mid-way which is up to the State Legislature and not Florida Supremes. It stopped the last "chad counting". I could have it wrong, but I remember the USSC opined that Florida SC had no jurisdiction to interfere with the Constitutional right of State Legislatures to stipulate their own process. I believe that was the lawsuit by Gore.
The Florida Supreme Court couldn’t call it because it was a Federal Election and they’re a State Court. All I remember is that guy with the bulging eyeballs checking out a chad. The other thing I remember is one of the Supremes speaking about punching out the chads saying...What’s so hard about that.