The unanimous decision reversing the district court in 281 Care Committee v. Arneson is here.
The result is not a surprise, given the Supreme Court’s decision in U.S. v. Alvarez and its more recent Susan B. Anthony case. Given the result in this case, I expect the Supreme Court will not hear this case if the government seeks cert. (In contrast, if the 8th Circuit came out the other way I would have expected review).
I address the issues with regulating false campaign speech in A Constitutional Right to Lie in Campaigns and Elections?