Meme has incorrect info. She did not marry son of Iranian Secy of State, but an American-Iranian or Iranian National (unclear from both stories) who is friend of son of Iranian Sec'y of State. Friend was best man at wedding.
https://features.kodoom.com/en/iranian-diaspora/how-did-kerry-s-son-in-law-met-vanessa-kerry/v/4997/
https://truepundit.com/family-business-john-kerrys-secret-talks-with-iran-after-daughter-married-iranian-national-best-man-was-son-of-irans-secretary-of-state/