"America will have the backs of our friends in the region." That was the final sentence of a February 10 White House statement from the national security advisor, Jake Sullivan, responding to a terrorist attack that killed at least a dozen civilians in Saudi Arabia. Mr. Sullivan surely intended it sincerely. To anyone who has been watching what has been happening in the Biden administration, though, the language sounds more like bitter comedy or, at best, wishful thinking. Note the future...