[JURIST] The US Supreme Court [official website; JURIST news archive] heard oral arguments [day call, PDF; merit briefs] Wednesday in Nevada Commission on Ethics v. Carrigan [oral argument transcript, PDF; JURIST report] on whether the First Amendment allows states to prevent government officials from voting on matters in which they have or appear to have a personal conflict. The Nevada Supreme Court, citing Citizens United v. Federal Election Commission [opinion, PDF; JURIST report], held [opinion, PDF] that preventing an official…