How will Iran's new President engage with the West?

Iran’s new president Masoud Pezeshkian is touted as being a reformist, with a more conciliatory approach to a broad range of issues, from the women’s movement, to nuclear co-operation and relations with Western countries. But ultimately the country is still ruled by the Supreme Leader Ayatollah Khomeini and the ultraconservative Guardian Council. So how much difference can he really make? And what role will Iran still play in supporting Hezbollah and other militias in a proxy war with Israel? 

Guest: Vali Nasr, professor of international affairs and Middle East studies at John Hopkins University.