Yup. And they further ruled that if Trump had:Wrong. The law on election day was you had to be indefinitely confined to vote by mail. If you didn't meet that standard and voted by mail you voted illegally.
A) Applied that to the entire state and not just to two districts and...
B) Made this argument before the election and not afterward...
then his case would have had merit.
Here is the link to the ruling specific to Trump's WI Supreme Court case.
Link
"We conclude the Campaign is not entitled to the relief it seeks. The challenge to the indefinitely confined voter ballots is meritless on its face, and the other three categories of ballots challenged fail under the doctrine of laches."
So, one more time, with feeling...
There is no ruling from the Wisconsin Supreme Court that states that Trump won the 2020 election.