Tara Tahbaz, the daughter of an Iranian-American environmental campaigner who has been imprisoned by Iran, said she has lost confidence in US efforts to free her father. Morad Tahbaz was arrested by Iranian authorities in 2018 and sentenced to 10 years in jail in 2020 on charges of spying, conspiring with Washington and threatening national security. On April 21, 2023, US State Department Spokesman Vedant Patel renewed calls for Tehran to release Tahbaz along with two other US citizens held in Iran on espionage charges.