He did it again, as we should have expected. Iranian supreme leader Ayatollah Ali Khamenei walked us right up to the finish line, spat on us, and walked away. Months and months of secret and public talks, letters, back channels, and gestures produced nothing of the sort the president, assorted foreign ministers, pundits, and politicians had been predicting. Instead we are to keep talking, and keep paying the Islamic Republic for the pleasure and privilege.

It’s not Barack Obama’s unique failure; the same thing happened to Bill Clinton and George W. Bush. Both of them came to believe they had a deal with Khamenei, and both of them were rudely disabused of their error when the Iranians walked away. Bush’s secretary of state, Condoleezza Rice, was so sure it was a done deal, and so intent on getting it signed and sealed, that she issued three hundred visas over a single weekend in September 2006, for passengers to travel on Ali Larijani’s plane to New York for a signing ceremony at the UN.  She then flew to New York to await the Persians. But Larijani’s plane sat on the tarmac in Tehran, and neither he nor the 300 ever came.