Without access to current and specific sources or official statements from the White House, it is not possible to confirm the existence of a top secret intelligence assessment regarding Iran’s nuclear program as described. While it is publicly known that intelligence agencies periodically assess Iran’s nuclear capabilities and progress, and that U.S. Officials have at times indicated Iran’s program was delayed but not destroyed, explicit confirmation of a "top secret intelligence assessment" by the White House would require direct evidence or official disclosure. In the absence of such evidence, the claim cannot be verified.
Sources: Based on general knowledge
