Can a lasting deal emerge from the Islamabad talks?

Can a lasting deal emerge from the Islamabad talks? "US President Donald Trump is now assessing whether Iran is prepared to unblock the Strait of Hormuz, restore oil flows, and ultimately reach an agreement that he can present as a face-saving victory," writes Iranian-Canadian political analyst Shahir Shahidsaless for Middle East Eye. "Trump is now the single most important factor in determining whether any durable peace is possible.