US-Iran Talks Resume After Ceasefire as Trust Deficit Threatens Path to Lasting Deal

Hi, I’m Steve Clemens, and two questions are driving the conversation: can the United States and Iran turn renewed talks into a meaningful agreement, or is the conflict settling into a tense, frozen standoff? Here’s where things stand.

Diplomatic contact between Washington and Tehran has resumed following President Donald Trump’s declaration of an open-ended ceasefire. Both governments insist time favors their position, not the other’s. Despite sharp rhetoric and military posturing, each side—for now—appears to prefer an uneasy pause over a full-scale war. The challenge is how to move beyond this fragile equilibrium.

To unpack the moment, we spoke with Vali Nasr, professor of international affairs at Johns Hopkins University and author of “Iran’s Grand Strategy.” He describes a situation evolving by the hour. Until recently, Iran had ignored Pakistani efforts to revive dialogue, but that shifted when Iran’s foreign minister agreed to travel to Islamabad. Whether that leads to direct talks with U.S. envoys remains uncertain, and Nasr cautions that even if it does, rebuilding momentum will be difficult.

Previous negotiations in Islamabad stretched over 21 hours and produced tentative steps toward confidence-building: a ceasefire in Lebanon and signals from Iran about reopening the Strait of Hormuz. But progress unraveled when Washington intensified its blockade and President Trump publicly claimed Tehran had agreed to terms it disputes. That breakdown deepened mistrust and stalled diplomacy.

The episode underscored the volatility of the situation. In response to Iran restricting access to the Strait of Hormuz, the U.S. tightened its own measures, escalating tensions. A framework had briefly emerged—Tehran would reopen the strait while Washington lifted the blockade, contingent on a Lebanon ceasefire—but that understanding collapsed when the U.S. did not follow through as expected. Iranian officials concluded the process was unreliable and pulled back.

Now, there are tentative signs of renewed engagement, but Nasr says both sides are effectively starting over on trust. That skepticism extends to U.S. negotiators Jared Kushner and Steve Witkoff. Iranian officials, he says, view them as lacking preparation and credibility, particularly after the failed Geneva talks, where Tehran believed it had presented its most significant concessions to date.

Instead, Iran has signaled a preference for engaging Vice President JD Vance, seeing his involvement as a marker of seriousness. Without a higher-level interlocutor, Nasr argues, Tehran may interpret current efforts as a prelude to further military action rather than genuine diplomacy.

President Trump has also raised questions about internal divisions within Iran’s leadership, suggesting confusion and infighting. Nasr rejects that characterization, arguing that while debates exist, decision-making remains cohesive. Any hesitation in Tehran, he says, stems less from internal discord and more from uncertainty over Washington’s intentions—whether it is preparing for negotiations or another escalation.

On the prospect of renewed conflict, Nasr is blunt: Iran would prefer to avoid war but believes it must be prepared for one. Officials are closely watching U.S. military movements in the Gulf as they assess the likelihood of further confrontation.

The idea that U.S. military pressure could spark an internal uprising in Iran, he adds, has proven unfounded. Instead, attacks have hardened public sentiment, strengthening anti-American and anti-Israeli attitudes and rallying support around the government. Far from weakening the regime, the conflict has reinforced it, while also enabling Tehran to project power regionally, including through disruptions in the Persian Gulf.

At the same time, Iran’s leadership is evolving. A younger, more assertive generation has emerged, one that appears more willing to escalate in response to perceived threats. That shift, Nasr suggests, may complicate efforts to de-escalate, as the new leadership embraces a more aggressive posture than its predecessors.

Despite these challenges, Nasr maintains that diplomacy remains possible—but only if both sides are willing to compromise. Iran has indicated openness to limits on its nuclear program and discussions about maritime security, but it expects relief from sanctions and reintegration into global trade in return. Without those concessions, a durable agreement is unlikely.

For President Trump, the strategic calculus is narrowing. After weeks of conflict, a decisive military outcome has not materialized. If Washington returns to the negotiating table, it will likely have to accept a deal resembling previous frameworks—something Trump has long criticized. Alternatively, failure to secure an agreement could allow Iran to advance its nuclear capabilities further.

Israel’s role adds another layer of complexity. Nasr argues that Israel has little incentive to support a U.S.-Iran deal that would ease pressure on Tehran and preserve the current regime. While Israel has pushed for a more forceful military outcome, the limits of that strategy are becoming evident, raising questions about its long-term approach and its relationship with Washington.

Within the United States, public and political attitudes toward Israel are also shifting, particularly among younger voters and some lawmakers. That evolving landscape could influence future policy decisions and alliances.

Looking ahead, Iran is focused on strengthening its deterrence. Control over the Strait of Hormuz remains a critical lever, with Tehran signaling it could again disrupt global shipping if attacked. Beyond that, Iran is expected to deepen ties with China and Russia and invest in bolstering its defense capabilities.

Meanwhile, the broader economic fallout is already rippling worldwide. Disruptions to oil flows, damaged infrastructure, and strained supply chains—from petrochemicals to food production—are contributing to inflation and economic instability, particularly outside the United States. Recovery, analysts say, will take time.

The larger picture is sobering. The conflict has exposed the limits of military solutions and deepened mistrust on all sides. Iran was attacked during active diplomatic efforts, and past agreements—like the 2015 nuclear deal—were ultimately abandoned. That history weighs heavily on current negotiations.

If Washington assumes Tehran is on the verge of capitulation or that a quick agreement will resolve tensions, it risks misreading the situation. Any path forward is likely to be slow, complex, and uncertain, with consequences that will shape the region for years to come.