Two lies, actually. The first was Iran’s declaration to the International Atomic Energy Agency, prior to the implementation of the deal, of the full extent of its past nuclear work. This was essential, both as a test of Tehran’s sincerity and as a benchmark for understanding just how close it was to being able to assemble and deliver a nuclear warhead.
The second lie was the Obama administration’s promise that it was serious about getting answers from Tehran. In a moment of candor, then-Secretary of State John Kerry admitted “we are not fixated on Iran specifically accounting for what they did at one point in time or another” — but then he promised Congress that Iran would provide the accounting.
That was when the White House still feared that Congress might block the deal. When it failed to do so, thanks to a Democratic filibuster, the administration contented itself with a make-believe process in which Iran pretended to make a full declaration and the rest of the world pretended to believe it.