We all know what is wrong with Iran. It is a repressive theocracy and a rogue state. It bans opposition parties, harasses religious minorities, hangs gay people, sponsors religious extremists overseas, and ignores the diplomatic norms that other countries take for granted.

So, let’s ask a question. What makes Saudi Arabia any different? It has committed all the violations I just listed. Why does the United States sanction Tehran while indulging Riyadh?