German Foreign Minister Sigmar Gabriel, like others in Western Europe, is worried once again that President Donald Trump will blow up the Iran nuclear deal. Its not just that the Europeans assert that Iran is complying with the terms of the 2015 accord. Its also that Gabriel believes exiting the agreement would send the wrong message to North Korea. “It’s absolutely necessary to have the signal that it’s possible by diplomatic approaches to prevent the development of nuclear weapons in a time where other parts of the world are discussing how to get nuclear weapons into force,” he told reporters at a meeting with his Iranian and European counterparts Thursday in Brussels. Gabriel was sending a message to Trump. This weekend the president will have to decide, again, whether to re-impose the nuclear sanctions his predecessor lifted as part of an accord to bring transparency to Irans nuclear program. His strategy has been to threaten those sanctions in order to get the Europeans to negotiate better terms with Iran. As the Washington Free Beacon reported this week, there is now a frantic effort in Congress and Trumps own administration to give this strategy more time. It may seem that Trump and Gabriel are on opposite sides. But they are both stuck in a familiar policy cycle when it comes to rogue proliferators: threaten, punish and negotiate. As the nuclear bargain showed, its possible to get predator states like Iran to temporarily pause nuclear programs in exchange for lifting sanctions and promises of investment. And yet the root of the problem in Iran remains the regime itself. Remember that as Europe, America, China and Russia negotiated with Irans diplomats, its terror masters aided the Syrian dictators campaign of mass murder. A new approach is required, particularly in light of the demonstrations that have rocked Irans regime in the last two weeks. The dictatorship cannot be separated from its proliferation. Indeed, the nuclear program is the dictators insurance policy. Imagine if Iran did not have a nuclear card in 2009, when hundreds of thousands of Iranians came into the streets to protest a stolen presidential election? Western pressure would have been rightly focused over time on releasing the leaders of the Green Movement, who to this day remain under house arrest or in prison. Instead that issue was dropped by Europe and America, and we ended up with the nuclear deal. Its time for Trump to make the Iranian people the focus of his Iran policy. This requires a few steps. First: Trump should not re-impose the nuclear sanctions. Those sanctions were designed to put maximum pressure on Irans economy to force the regime to relent on its nuclear program. Aside from the lack of good options on what to do if Iran breaks out of the agreement, this approach would punish Irans population at a moment when America should show solidarity with the countrys freedom movement. Dennis Ross and Richard Goldberg -- a former Obama adviser and a former Senate Republican staffer, who both helped to develop those original sanctions -- argue that in moments like this, its possible to walk and chew gum. Ronald Reagan was able to pressure the Soviets on their treatment of dissidents and still hold them to commitments in their arms control agreements. Instead, Trump should pressure European allies to adopt a unified policy to punish the Iranian regime for its treatment of political prisoners and demonstrators. Former Soviet dissident Natan Sharansky calls this approach "linkage" because it ties the dictators abuse of his citizens to his legitimacy on the international stage. Trump should press European governments to begin treating Iran like apartheid South Africa. This means rethinking the kinds of sanctions to impose on Iran. The targets should be narrower than Irans central bank or its oil exports. Consider Irans state broadcasting arm, known as the Islamic Republic of Iran Broadcasting, or the Supreme Leaders slush fund, known as Setad. Targets like this help to separate the dictator and his henchmen from the population. In the case of Setad, it sends a particularly important message because this fund, which Reuters reports was worth $95 billion, is seeded with assets seized in court from regular Iranians. The sanctions approach should also be different. Trump could take a page from the penalties imposed on Russian leaders -- sanctions named for the murdered former tax attorney Sergei Magnitsky -- and make the assets of the regimes leaders toxic. The relatives of Qassem Suleimani, the head of Irans Quds Force, should not be able to travel to Europe or America. The children of regime figures should not be allowed to study in America. Trump can also instruct his government to do more, behind the scenes, to increase the redundancy and resilience of Irans internet. Unlike in 2009, the regime cannot simply turn off the internet; the ministries of the state rely too much on the web to do that. This presents an opportunity for the US to make it easier for Iranians to get online, for instance by boosting the signals of cell towers near Irans borders or working with communication platforms like Telegram to get around the states recent ban. Trump can also instruct his government to collect information on the regimes own brutality against its population. Here is a chance for European allies, who have embassies inside Iran, to also help. As I have written, the West should be compiling the names of Iranians arrested, beaten and killed in recent demonstrations, and outside groups should publicize this. Threatening Irans economy in the hopes of renegotiating the sunset provisions of the nuclear deal presumes the mullahs in charge of Iran will be there forever. Instead, Trump should work with Irans people, who are focused on a more important sunset: the end of the regime.(Bloomberg)