He surely miscalculated, and I don't know how he can get out of this without losing the face, he doesn't have years like Russia, mid term approaching, it has to end before

I think the only possible way to have halted nuclear bombs program of Iran was to have Russia and China, the two allies, to put pressure on it, but you can't do this after insulting China every day and forcing the war in Ukraine with Russia (and that's thanks to Biden too not just Trump)