In their anti-Duckworth campaign ad, the Independent Voice for Illinois PAC says "...Secret documents reveal that Iran could obtain a nuclear weapon far sooner than we were told. And Tammy Duckworth voted ‘yes.’ "

Duckworth did vote in favor of the JCPOA, but the Independent Voice for Illinois PAC’s ad is still incorrect on several fronts. The advertisement indicates there are multiple documents. But according to the Associated Press story the ad references, there is only one secret document. The ad also says these "secret documents" would allow Iran to obtain a nuclear weapon sooner than we were told. This, too, is incorrect. The document explains the secret agreement would boost uranium enrichment capacity, but never says Iran would be able to obtain a weapon sooner.

Finally, an expert told PolitiFact Illinois that there is actually no contradiction between the main agreement and the secret document, just a bit more detail.

Together, these points show a manipulation of the facts. IVFI misinterpreted information from the Associated Press in their advertisement, potentially leading people to believe Iran will have access to a completed and usable weapon before the deal expires.

For that, we rate this claim Mostly False.