As the president threatens to wipe out Iran and attacks the pope, even some former allies and advisers are questioning whether he has grown increasingly unbalanced, describing him as “lunatic” and “clearly insane.” President Trump’s erratic behavior and extreme comments in recent days and weeks have turbocharged the crazy-like-a-fox-or-just-plain-crazy debate that has followed him on the national political stage for a decade. A series of disjointed, hard-to-fol... [835 chars]