A former Iranian foreign minister who was key to the country's 2015 nuclear deal with world powers reportedly tendered his resignation Monday from the government of reformist President Masoud Pezeshkian,

Trump reportedly conveyed his interest in Russian mediation directly to President Vladimir Putin during a phone call in February. Days later, senior officials from both governments discussed the matter in Saudi Arabia,

Diplomats are mulling whether US President Donald Trump might have a new opening to negotiate with Tehran, but so much has changed in the past 10 years.