President Trump’s decision not to renew Iran sanctions waivers effectively withdraws the United States from the disastrous nuclear agreement with Tehran, and sets the stage to negotiate a better deal.

It is hardly surprising that the president would choose not to continue an agreement he called “the worst deal ever.” The Joint Comprehensive Plan of Action (JCPOA) has a number of significant flaws, such as a weak inspection and verification regime, an automatic sunset provision and failure to restrict Iran’s growing ballistic missile program.

Furthermore, it did nothing to hamper Tehran’s support for terrorism and insurgency. In fact, the up to $150 billion in Iranian assets the deal unfroze has probably helped underwrite the country’s recent military adventurism in Syria and elsewhere.