JCPOA debate – Eight years after Trump withdrew from the JCPOA, supporters and critics revisit whether staying in the Iran nuclear deal could have prevented war and costs.
A U.S. policy fork in 2018 still shapes the debate over the Iran nuclear deal: would the country be better off today if Donald Trump had kept the JCPOA in place?
When Trump withdrew the United States from the Joint Comprehensive Plan of Action. widely known as the Iran nuclear deal. it set off a yearslong political argument that has never fully quieted.. In Washington. roughly half of the political class has continued to describe the JCPOA as the best available bargain. while another half insists there was a better deal.. Since 2018, those competing views have served as the recurring backdrop for U.S.. Iran policy.. And they’ve resurfaced again as the U.S.. has pursued a harder line under what the text calls Operation Epic Fury.
Supporters of the JCPOA have long argued that continued U.S.. participation would have constrained Iran’s nuclear program under international inspection. reducing both the perceived need for confrontation and the economic toll associated with war.. The central claim is straightforward: a managed and monitored nuclear path would have been safer than a breakdown in constraints followed by an Iranian push to enrich uranium after the U.S.. exit.
But the debate is also about counterfactuals. and the question of whether the world that might have existed with the agreement still running would truly have been better.. The text frames a particular issue for policymakers: what assumptions did both sides carry into the 2018 decision. and do those assumptions still hold up when the clock is turned back?
At the time the deal was negotiated, U.S.. leaders had not only positioned it as an arms control mechanism.. The argument. as the text notes. was also that the agreement could catalyze improvements in U.S.-Iran relations and influence Iran’s international conduct. domestic politics. and approach to Washington.. A key illustration in the text comes from Ben Rhodes. a deputy national security advisor during the Obama administration. who linked the deal’s promise to the possibility of improved relations with adversaries.. The text also describes the deal’s logic as an extension of a “goodwill begets goodwill” mindset.
There is also a specific anecdote used to support the idea that engagement could produce outcomes before the broader unraveling.. Before the JCPOA took effect, two U.S.. Navy patrol boats drifted into Iran’s territorial waters.. Iranian forces apprehended the sailors. and negotiations involving Iranian Foreign Minister Mohammad Javad Zarif and Secretary of State John Kerry helped secure their release after roughly 15 hours. with the text emphasizing that the IAEA—empowered to monitor the JCPOA—reported that Iran adhered to the agreement at that time.
Still, the text argues the JCPOA left unresolved “thorny” problems and relied heavily on expectations about what would happen later.. One challenge concerned sites where Iran was suspected of nuclear activity but where monitoring was not described as continuous under IAEA oversight.. The JCPOA’s dispute resolution process. according to the text. could take up to 24 days—time that critics say might have been enough to conceal questionable activity.. While the text acknowledges that the process could request clarification and move the matter through consultation structures. it describes the overall mechanism as cumbersome and potentially permissive in practice.
The more consequential sticking point. however. was what would happen when the JCPOA’s nuclear limits expired—especially restrictions on uranium enrichment that. in the agreement’s structure. ended in 2030.. In the text. supporters are described as trying to fill that future gap with hope: follow-on diplomacy could extend restrictions. or Iran might decide not to restart its program after benefiting from the deal.
The counterargument presented here is grounded in both incentives and timing.. The text contends that it is unlikely Europe. China. and Russia would have been willing to renew sanctions on Tehran after a 15-year stretch of sanctions relief.. It also argues that Iran’s leadership would not have treated the JCPOA as a durable partnership. but rather as a “one-time” diplomatic agreement that delivered resources without permanently surrendering the nuclear program.. In this view, the regime would likely resist any attempt to renew constraints after the deal’s sunsetting provisions.
The text further suggests that sanctions relief in the period leading up to 2030 would not necessarily have produced the intended benefits for ordinary Iranians.. Instead. it argues that given what it characterizes as the IRGC’s role. the money would likely have flowed toward the IRGC and its priorities. including efforts to destabilize the region.
In that framework. the JCPOA may have delayed Iran’s nuclear activity. but it would not have removed the underlying capability.. Even if Iran did not have the amount of highly enriched uranium the text says it now possesses. it would still retain knowledge and ambitions to resume work when restrictions ended.
The result is a disputed conclusion about whether the agreement’s continuation would have produced a radically better world.. The text maintains that even if Trump had stayed in the JCPOA. a future crisis would likely have returned once constraints expired—leaving the United States still needing to manage Iran’s nuclear ambitions and regional conduct.
That evaluation also extends beyond abstract nonproliferation calculations to the human and political cost.. The text emphasizes that many Iranians supported the deal, hoping sanctions relief would bring better conditions.. Yet it argues those hopes did not materialize. since repression continued and the flows of resources did not translate into constructive outcomes for the public.. For Iranians who wanted the Islamic Republic to collapse. the text suggests the JCPOA did not help their case—framing it as strengthening an “awful regime” through resources and breathing space.
The piece also draws a boundary around its own argument: it does not claim war is preferable.. Instead. it proposes that there was a middle path between the JCPOA and the conflict—one focused on deterrence and containment while keeping regime change off the table.. The approach described would still use the threat of military action to keep Iran’s behavior in check and rely on economic tools to make proliferation harder.
Whether that alternative could have been implemented is left as an open question, but the text closes with a blunt assessment: even if the post-deal direction resembles the deterrence-focused reality the text expects after Epic Fury, “unnecessary damage” has already been done.
In the end, the JCPOA debate is not only about what the deal was on paper.. It is about the assumptions that surrounded it—about incentives. enforcement. follow-on diplomacy. and whether the political conditions for future sanctions relief and renewed restrictions could realistically survive the passage of time.
JCPOA Iran nuclear deal United States policy Operation Epic Fury uranium enrichment sanctions relief U.S.-Iran