Days after Israeli strikes killed Iran’s supreme leader and other officials in the opening salvos of the war, Trump mused publicly it would be best if “someone from within” Iran took over the country. It turns out that the US and Israel went into the conflict with a particular and surprising someone in mind: Mahmoud Ahmadinejad, the former Iranian president known for his hard-line, anti-Israel and anti-American views. But the plan, developed by the Israelis and which Ahmadinejad had been consulted about, quickly went awry, according to the U.S. officials who were briefed on it. Ahmadinejad was injured on...