Friday, April 3, 2026

Diplomacy During War: Priorities for the Trump Administration Featuring Emily Harding, Richard Nephew, and Michael Singh April 3, 2026 -- The Washington Institute for Near East Policy

 

Policy Forum Report

Diplomacy During War: Priorities for the Trump Administration

Featuring Emily Harding, Richard Nephew, and Michael Singh

April 3, 2026

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Three former U.S. policy practitioners experienced in negotiating with Iran discuss what kind of agreement is possible, what each side may require to make it happen, and how officials in Washington, Israel, the Gulf states, and Europe should address emerging differences in their objectives.




On April 2, The Washington Institute held a virtual Policy 

Forum with Emily Harding, Richard Nephew, and 

Michael Singh. Harding directs the Intelligence, National 

Security, and Technology Program at the Center for 

Strategic and International Studies and has served in 

multiple U.S. government posts. Nephew is the Bernstein 

Adjunct Fellow at The Washington Institute and former 

U.S. deputy special envoy for Iran. Singh, the Institute’s 

managing director and Lane-Swig Senior Fellow, formerly 

served as senior director for Middle East affairs at the 

National Security Council. The following is a rapporteurs’ 

summary of their remarks.

Emily Harding


Central to any negotiations in the current war is the 

tension between diverging Israeli, U.S., and Iranian 

interests. While Israel seeks to eliminate the Iranian 

threat, Washington wants to disengage, and Tehran 

feels it must secure an agreement that projects 

strength to the Iranian people. These differences 

create a narrow bargaining space that will require 

significant concessions from each party, complicating 

the path to a final deal. 


Iran knows how to manipulate negotiations to yield 

favorable results, so the process will likely last 

numerous weeks. Unlike Washington, Tehran has 

time on its side and can leverage this to extract 

concessions. The upcoming U.S. midterm election is 

one such pressure point the Iranians can exploit by 

dragging out talks. Even if a negotiated agreement is 

reached quickly, the extant disruptions to oil 

production and fertilizer supplies will likely have 

long-term ramifications—particularly in the Global 

South, where countries will plant this fall.  



Recently, China has “entered the chat” as a potential 

mediator, though it is unclear if Beijing can play this 

role effectively. It wants to be seen as a peacemaker 

and has signaled interest in getting involved with 

Iran diplomacy, but it seems unwilling to 

meaningfully act on that ambition and do the work 

needed to get results. Meanwhile, European 

mediators may lack the resources to lift Iran’s control 

over the Strait of Hormuz, potentially yielding an 

outcome in which ships agree to pay a “toll” to the 

regime.  


In the longer term, the war will draw the Gulf 

countries and the United States closer together; it 

might also improve Gulf collaboration with Israel, 

possibly even expanding the Abraham Accords. At 

the same time, however, the war has damaged the 

Gulf’s reputation. In attempting to become a hub for 

high-tech innovation and investment, the Gulf states 

sought to project an image of modernity to the world, 

but the war has interrupted those efforts. For 

example, the cancellations of this year’s planned F1 

Grand Prix races in Bahrain and Saudi Arabia have 

tarnished the region’s reputation as a stable 

investment zone. 


Regardless of how the war ends, the rift between the 

Gulf states and Iran will reverberate in the short and 

long term. Gulf leaders must now consider how 

weak Iran would need to be before they extend an 

olive branch. They understand how to manage Gulf-

Iran relations better than the United States does, so 

Washington should engage with them to better 

understand these regional dynamics.


Richard Nephew

​​

Currently, the war is not presenting any easy paths to 

a negotiated solution. Both Washington and Tehran 

believe they have the advantage and are incentivized 

to keep fighting in order to improve their bargaining 

position. As they continue escalating, their already 

narrow zone of potential compromise becomes 

slimmer. If the United States attacks Iranian energy 

facilities and desalination plants as President Trump 

has threatened, Tehran would likely retaliate against 

similar facilities in the Gulf.  


Amid this escalation, allies in the Gulf and Europe 

are weighing the merits of continued close military 

ties with the United States. The aftermath of 

Operation Epic Fury will likely determine whether 

they believe future American security support is 

worth the risk of exposure to unpredictable U.S. 

policy. 


When President Trump returned to office last year, 

he initially signaled that he would continue the 

“maximum pressure” strategy used against Iran 

during his first term. Instead, the administration has 

overseen the most significant oil sanctions relief 

program since the 2015 nuclear deal. This indicates 

that Washington is prepared to make meaningful 

concessions to Tehran, potentially enabling the 

regime to rearm, reconstitute its proxy network 

abroad, and maintain its repressive apparatus at 

home. Despite America’s technological superiority 

and expansive military objectives, it faces limits 

imposed by political will; in contrast, Tehran’s 

willingness to absorb costs and continue fighting 

remains largely undiminished even as its capabilities 

have been degraded. Trump administration officials 

failed to plan for the contingency that the regime 

would not collapse or concede rapidly, and they have 

not yet laid out an alternate military or diplomatic 

route to victory. 



Regarding the situation in the Strait of Hormuz, U.S. policy planners have long understood the risk that Iran could seize control of this chokepoint in the event of full-scale war. Thus far, Washington has been unable to bolster international confidence sufficiently to restore unimpeded transits, lending credence to Tehran’s proposal for extracting a toll of $2 million from each oil tanker that passes through the strait. Such a development would be greatly detrimental to U.S. interests, in part because these fees would further enrich Iran’s Islamic Revolutionary Guard Corps. Yet the war’s far-reaching energy shortages have generated sufficient anxiety that Tehran may be able to force the measure through. In that case, Washington would need to address the ensuing gap in its network of sanctions and determine whether to let that system atrophy.

The Trump administration has also changed its rhetorical positioning on the nuclear file. Both the current conflict and last year’s twelve-day war were framed as preemptive measures to prevent the regime from developing a nuclear weapon. Although recent administration statements have claimed that external monitoring will be sufficient to meet that goal, the situation on the ground is sobering: Iran still has stockpiles of high-enriched uranium sufficient for multiple bombs, as well as the capacity and incentive to produce such weapons under a timeline that may be measurable in weeks.

Michael Singh

President Trump has made clear that he wants a negotiated agreement to end the war rather than a scenario in which the United States simply walks away from the conflict. While U.S. military objectives may have largely been achieved, a ceasefire will likely be necessary to advance Trump’s broader policy goals—namely, addressing Iran’s ballistic missile program, nuclear program, and support for proxy groups, among other things. Tehran does not believe it has lost the war and retains negotiating leverage through its ability to control the Strait of Hormuz. A comprehensive agreement is therefore unlikely in the near term; at best, a limited ceasefire could pave the way for a post-conflict phase, though even that may prove difficult. The U.S. strategy appears aimed at pressuring Tehran into accepting a deal by raising the costs of refusal, including by threatening strikes on power plants and oil infrastructure. For Trump, the dilemma is that failure to secure a deal could mean either deeper military engagement or leaving control of Hormuz in Iran’s hands.

U.S. and Israeli objectives may still align, but they differ in emphasis. Washington has focused on degrading Iran’s military capabilities, while Israel is intent on weakening the regime itself. A key uncertainty inside Iran is whether internal unrest will emerge after the bombing stops or the regime will remain in control. Israel is likely to oppose any outcome that strengthens the regime, such as restoring oil revenues or offering security guarantees against future Israeli strikes.

For the Gulf Cooperation Council states, the central concern is how Washington exits the conflict, particularly with regard to the Strait of Hormuz. Although they are wary of escalation, they do not want Iran to emerge from the war in a position of strength. Moving forward, GCC states are likely to deepen security ties with Washington and with one another, including expanded arms sales and closer coordination. The conflict is also driving more creative problem-solving in the Gulf, especially on protecting energy infrastructure and countering drone and missile threats. Notably, Saudi Arabia might decide to think more seriously about obtaining a nuclear weapon for its national security strategy.

For now, the United States remains the region’s best, and possibly only, defense against Iran. China has not stepped in as a security guarantor, but it is closely watching U.S. military performance and may seek to exploit divisions between Washington and its partners. Trump’s suggestion that countries reliant on Gulf energy should secure maritime routes themselves was essentially a challenge to China, though Beijing is unlikely to welcome that role.

Three parallel approaches are emerging to address Iran’s de facto seizure of the Strait of Hormuz: coercion aimed at forcing Tehran to reopen the waterway to all traffic, negotiations tied to sanctions relief, and defensive measures such as naval escort missions. More broadly, the conflict is testing U.S. credibility on upholding global freedom of navigation. If Washington appears unwilling or unable to secure key maritime chokepoints, it could have lasting consequences for energy markets and embolden adversaries to threaten or exploit similar routes elsewhere. Most concerning are President Trump’s recent remarks suggesting that the United States should not play a central role in the Middle East. This sentiment could be reinforced by a prolonged conflict with Iran, potentially steering the administration away from investing in regional countries where U.S. strategic interests remain significant.

This summary was prepared by Sarah Boches, Kate Chesnutt, and Gabriel Wein.

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