It's why Trump is pissing himself trying to get a deal. If the straight stays closed, everyone is fucked.
He can't take a worse deal than the Obama deal he spent years criticizing then personally destroyed, and the Iranians don't seem very inclined to give him anything better.
He's just never really been good at it.
Unless... unless the government of Iran falls during the stalling. If they get no oil revenue... maybe? Could it happen?