NextFin News - U.S. President Trump on Friday intensified his criticism of the 2015 Joint Comprehensive Plan of Action (JCPOA), labeling the Obama-era nuclear agreement "horrible" and "tantamount to giving Iran a nuclear weapon." Speaking in an NBC News interview on June 5, 2026, U.S. President Trump defended the current lack of a diplomatic resolution to the four-month-old conflict with Tehran by asserting that his predecessor’s deal allowed Iran to "get away with murder." The remarks come as the administration faces mounting pressure over a war that was initially projected to last weeks but has now entered its second quarter without a clear path to peace.
The JCPOA, a 160-page document finalized in July 2015 by the P5+1 nations, was designed to trade sanctions relief for strict limits on Iran’s nuclear capabilities. Under its terms, Iran was restricted to a stockpile of 660 pounds of uranium enriched to 3.67%—a level suitable for civilian power but far below weapons-grade. However, since the U.S. withdrawal in 2018, those guardrails have largely disintegrated. According to the International Atomic Energy Agency (IAEA), as of June 2025, Iran’s enriched uranium stockpile had ballooned to nearly 21,800 pounds, with over 970 pounds enriched to 60%—a threshold experts consider usable for nuclear explosives.
Ernest Moniz, who served as U.S. Energy Secretary during the 2015 negotiations, remains a prominent defender of the original deal’s technical merits, though he acknowledges it is now effectively "history." Moniz, known for his pragmatic, science-based approach to non-proliferation, told CNBC that the JCPOA’s "extraordinary verification and transparency measures" were its most critical features, including a novel 24-day access requirement for inspectors to visit suspected covert sites. He noted that current conditions for a new deal appear "far less favorable" than they were a decade ago, suggesting that U.S. President Trump’s strategic priorities have yet to yield a superior alternative.
The debate over the JCPOA’s legacy is sharply divided. Proponents like Kelsey Davenport, director for nonproliferation policy at the Arms Control Association, argue the deal was an "effective, verifiable agreement" that successfully halted Iran’s march toward a bomb. Conversely, critics such as Marco Rubio have long contended that the deal’s "sunset provisions"—which allowed certain restrictions to expire after 10 to 20 years—merely delayed an inevitable nuclear arms race while providing Tehran with the cash flow to fund regional aggression. U.S. President Trump echoed these sentiments, claiming the deal would have "expired long ago," despite many of its transparency rules being permanent.
The current stalemate is complicated by Iran’s significant technological advances since 2018. Davenport points out that any agreement reached in 2026 must contend with a "gap in inspections" and the increased political motivation within Tehran to weaponize following U.S. and Israeli military actions. Reports indicate that negotiations are currently stalled over Iranian demands for monetary compensation, a sticking point that highlights the difficulty of surpassing the 2015 framework. While U.S. President Trump maintains that a "far better" deal is forthcoming "relatively quickly," the reality on the ground reflects a more entrenched and dangerous nuclear landscape than the one inherited from the Obama administration.
Explore more exclusive insights at nextfin.ai.
