After surging above $100 a barrel on Monday, oil falls closer to $90 - but remains above pre-war levels. Trump also says he will hit Iran "twenty times harder" if they block the Straits of Hormuz.

"They’ve [the Assembly of Experts] chosen someone but we don’t know what his goals are or what his relationship with the Revolutionary Guards is," Zarka says. "If he continues to follow the same path ...