There's no 4d chess plan here.

Trump thought it would go exactly as Venezuela and has no idea how to fix it. They tried to kill enough of Iran's leadership to get to somebody that would be subservient but it turns out nobody is left alive in Iran that is.

Well regardless this situation strengthens USA's economic position and weakens China, so its not a bad spot to be in. That it also strengthens Russia doesn't matter much since they are no longer seen as the great enemy, after their performance in the Ukraine war was lacking.