Moodyman
Regular
For what matters the regime hasn't really changed, the dominant faction may have, but the regime structures remain as they were.
If anything, the remaining regime is hardened. Khameini senior was deemed a pragmatic moderating force. There were many in the administration who did not want to negotiate a nuclear deal. Some of those are now talking of abandoning the fatwa (banning nuclear weapons) to ensure they’re not attacked again.