I trust Rafsanjani about as far as I could throw him.
So Iran elects a new president and its an excuse for their useful idiots in the US media to claim that Iran is going in a new, more moderate direction. Iran gets some diplomatic mileage out of it before everyone realizes that Iran has not changed and is still doing the same old stuff it did before. It happens over and over but the US MSM still writes stories about a “new direction” when someone new comes in who claims to be moderate.