From deep in a world of wishful thinking, the White House’s press secretary, Josh Earnest, said on Friday that the Obama administration is hopeful of holding together “the unanimity of support” it is getting from countries described as a coalition working together to stop Iran’s rush toward nuclear weapons.

Was the White House closed for a spiritual retreat earlier in the week? Because last Monday, Russia offered to sell the Islamic Republic its most advanced S-300VM Antey-2500 antiballistic missiles. They would protect the...