MURPHY, Circuit Judge. Carrie Davis raises weighty First Amendment challenges to two speech restrictions issued by Colerain Township in southwest Ohio. The first restriction prohibits the public from posting “inappropriate” or “offensive” comments on the police department’s Facebook page; the second prohibits the public from making “disrespectful” comments at meetings of the board of trustees. Davis argues that these restrictions have stifled public debate in a way that conflicts with Supreme Court precedent. No matter the importance of a legal question, however, we may not answer it except when necessary to decide a live “Case” or “Controversy” within the meaning of Article III of the Constitution. And Davis has not raised her free-speech claims in such a case or controversy. She has failed to show that the Facebook rule has injured her in the past or is likely to do so in the future. The Township has also repealed the meeting rule. So Davis lacks standing to litigate one of her challenges and her other challenge is moot. We thus affirm the district court’s judgment for the Township, while clarifying that we reject these claims for lack of jurisdiction and so without prejudice.