As Trump prepared to meet Israeli Prime Minister Benjamin Netanyahu at the White House on Tuesday, he again warned that if Tehran refused to reach a nuclear deal, the United States would "finish the job."
The question became more urgent after Iran's surprise strike on US forces in Jordan—the Islamic Republic's first preemptive attack of the war rather than a retaliatory one—prompted Trump to declare the United States would "beat the fu*king sh*t out of" Iran.
"It's not just the nuclear program," said retired Admiral Robert Harward, a former deputy commander of US Central Command, arguing that Iran must lose not only its ability to build a nuclear weapon but also its capacity to threaten the region through missiles, drones and proxy forces.
Harward, a retired US Navy SEAL who lived in Iran before the 1979 revolution, said any lasting solution would require dismantling Tehran's broader military architecture, securing freedom of navigation through the Strait of Hormuz and limiting its ability to project force across the Middle East.
"I think when President Trump says 'finish the job,' he does mean something beyond that," he said.
Trump has never publicly defined the phrase, leaving it open to a range of military and political interpretations. While some see it as shorthand for permanently dismantling Iran's nuclear programme, others argue it points to a broader effort to weaken Tehran's ability to threaten its neighbours and rebuild after the war.
Blaise Misztal, vice president for policy at the Jewish Institute for National Security of America (JINSA), argued that Iran's nuclear programme is ultimately a symptom rather than the underlying problem.
"So long as that regime is in power, we're going to continue to be under threat," he said.
Harward went further, arguing that "a change of government in Tehran has to be the ultimate end state" because only a different government could permanently redirect Iran's resources away from military confrontation and toward rebuilding the country.
Neither expert presented regime change as current US policy. Trump himself has stopped short of making that case, even as his rhetoric has grown increasingly aggressive.
Earlier this week, Trump suggested the United States could strike Iran's bridges, infrastructure and power plants while insisting he wanted to avoid harming the Iranian people.
Harward argued those comments point not simply to an expanded bombing campaign but to a strategy of economic and military isolation.
"I'd like to see them shut down the airspace. I'd like to see them shut down the borders," he said, arguing that restricting the state's ability to move goods, people and military equipment could prove as consequential as direct military strikes.
Harward also raised the possibility of limited ground operations. Distinguishing them from the large-scale invasions of Iraq or Afghanistan, he described highly targeted missions to seize or destroy specific military objectives as "a very viable option."
The broadest interpretation of Trump's slogan concerns the future of the Islamic Republic itself. For now, however, his repeated promise to "finish the job" remains deliberately open-ended.
Whether it ultimately means dismantling Iran's nuclear programme, crippling its military capabilities or creating the conditions for political change may depend less on Trump's rhetoric than on how the war itself unfolds.