President Trump likes his military and diplomatic victories quick, clean and decisive. (snip) But now, Mr. Trump has hit the stalemate phase of his presidency. The war with Iran is clearly at that stage. When he declared a cease-fire on April 7, Mr. Trump said on social media that the end of combat operations would be conditional on “the COMPLETE, IMMEDIATE, and SAFE OPENING of the Strait of Hormuz.” It wasn’t. Even if commerce now resumes across the strait under a memorandum of understanding still under negotiation, it will still leave the future of Iran’s nuclear and missile programs exactly...