Details here, here and here. Opinion Here.
Right now, an ex-lawyer in miami is crying.
What irked me about the regulation was not it's blatant violation of the first amendment (although that did sting), but that the law was so vague. That's the only way Senator Lee was able to get it passed after all. Once you start getting into the nitty-gritty of legislation, it gets harder to pass. When politicians approve vague legislation that has to get straightened out by the court, it should be expected that it gets thrown out and trashed in the first place. Senator Lee brought this on himself.
I think this is what irked Scalia as well.