You can find the brief at this link [Disclosure: I am one of the counsel on Mr. Carrigan’s brief]. Here is the Question Presented from the brief:

Petitioner Nevada Commission on Ethics censured an elected member of a city council for voting on one of the most important and controversial questions before the council–a question that dominated the contemporaneous election. The Ethics Commission held that the councilmember was disqualified because a key campaign volunteer had lobbied the city council on the issue. The question presented is what level of First Amendment scrutiny applies to Nevada’s unique disqualification provision.