When Israeli Prime Minister Benjamin Netanyahu spoke to the UN General Assembly this week, neither Secretary of State Kerry nor even our UN Ambassador, Samantha Power, was present. Why not? The State Department has said Kerry was involved in some kind of conference call or video conference with the White House. OK, let’s call that plausible. What about Power? Rick Grenell, for years the spokesman at the US Mission to the UN and a very well-informed observer, tweeted yesterday that Power was instructed to stay away. Think of how petty that instruction, which can only have come from the White...