Here is the truth: no signing ceremony changes, and it carries no insult to the campaign: no agreement, not this one and not a better one, can permanently guarantee that Iran never builds a bomb.

Trump prefers an agreement to another prolonged war, but he also understands that an agreement reached through weakness can produce an even greater conflict.

At different moments, he warned of devastating consequences for Iran, then hours later claimed the regime was ready to negotiate and desperate for a deal.

Iran’s government said on Saturday that it had reimposed 'strict control' over the Strait of Hormuz as gunboats of the Islamic Revolutionary Guard Corps fired on three commercial vessels.