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,

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.

Iranian state media said that Iran’s “president acknowledges he shifted position on negotiating with the US to match [Supreme] Leader’s stance.”