When Hungarian Prime Minister Viktor Orbán stood shoulder-to-shoulder with Donald Trump at Mar-a-Lago last month, grinning for cameras while clutching a golf club like a scepter, the image wasn’t just awkward—it was a signal flare. For years, Europe’s populist firebrands have treated the former U.S. President as their ideological North Star, a blunt instrument to shatter liberal orthodoxy and reassert national sovereignty. But Trump’s recent pivot toward open confrontation with NATO, his flirtation with abandoning Article 5 commitments, and his explicit endorsement of Russian territorial gains in Ukraine have forced even his most ardent European admirers into an uncomfortable silence. The honeymoon is over—not because these leaders have abandoned their illiberal instincts, but because Trump’s actions now threaten the very foundations of the security architecture that allows their brands of nationalism to function.
This isn’t merely a transatlantic spat; it’s a structural realignment with profound consequences for European democracy. For over a decade, figures like Orbán, Poland’s former Law and Justice leader Jarosław Kaczyński, and Italy’s Matteo Salvini have leveraged anti-establishment rhetoric to consolidate power, framing Brussels and Washington as twin elitist conspiracies against the “real people.” Their strategy relied on a predictable counterweight: a U.S. Administration willing to criticize democratic backsliding but ultimately committed to NATO’s collective defense. That balance kept their authoritarian tendencies in check—provoking enough outrage to energize their bases, but not enough to trigger meaningful consequences from Washington. Trump’s second term has shattered that equilibrium. By openly questioning whether the U.S. Would defend a NATO ally under attack, he has removed the invisible guardrail that allowed European populists to play with fire without getting burned.
The implications extend far beyond diplomatic etiquette. Consider the Baltic states, where NATO’s enhanced forward presence—multinational battlegroups stationed in Estonia, Latvia, and Lithuania—exists precisely to deter Russian aggression. If Trump follows through on his suggestion that the U.S. Might not automatically defend allies who haven’t met the 2% GDP defense spending target (a criterion currently missed by over half of NATO members), it doesn’t just weaken deterrence; it creates a permissive environment for coercion. Suddenly, Orbán’s vetoes of EU aid to Ukraine or Salvini’s calls to lift sanctions on Moscow aren’t just politically expedient—they turn into potentially existential gambles. As one senior NATO official told me off the record last week, “We’re not worried about Trump abandoning Europe. We’re worried about him making Europe abandon itself.”
Historical precedent offers little comfort. During the 1930s, European fascist movements initially admired Mussolini and Hitler as strongmen who defied liberal democracy—until their expansionist ambitions triggered continental war, dragging even their admirers into catastrophe. Today’s parallels aren’t exact, but the pattern is unsettling: populist leaders who gain power by attacking international institutions often discover too late that those same institutions provided the stability necessary for their rhetoric to remain politically viable. When Orbán praises Trump’s “courage” in challenging NATO, he overlooks that the alliance’s credibility is what prevents Hungary from facing genuine security dilemmas—like having to choose between Russian energy dependence and national survival.
Economic interdependence amplifies the risk. Europe’s reliance on Russian energy, which fell from 40% of EU gas imports in 2021 to under 8% by late 2023 according to Eurostat, was replaced not by domestic production but by costly U.S. Liquefied natural gas (LNG) shipments. A transatlantic trade rupture—plausible if Trump follows through on threats to impose 10% tariffs on EU goods—would hit European industries already struggling with high energy costs and Chinese competition. Meanwhile, American farmers, who exported $13.8 billion in soybeans to Europe in 2024 (USDA data), would lose a critical market. The resulting economic pain wouldn’t be evenly distributed: it would disproportionately affect export-dependent economies like Germany and the Netherlands, potentially fueling the very populist backlash Trump claims to oppose.
What’s missing from much of the analysis is how this dynamic reshapes the internal logic of populist governance itself. Leaders like Orbán have built their legitimacy on delivering tangible results—lower taxes, cultural conservatism, and perceived protection from globalization’s disruptions. But if Trump’s policies trigger a NATO credibility crisis that leads to actual Russian incursions into NATO territory, or if transatlantic trade wars spark recession, the performance-based foundation of their authority crumbles. Suddenly, the “strongman” who promised to shield his people from external chaos becomes the architect of their vulnerability. As political scientist Yascha Mounk warned in a recent Brookings Institution panel, “Populism thrives on the perception of crisis, not its actual delivery. When the strongman creates the emergency he claims to solve, his contract with the electorate breaks.”
The path forward requires more than hoping for a return to pre-Trump normalcy. European leaders must confront an uncomfortable truth: their strategic autonomy initiatives—long dismissed as symbolic—have become urgent necessities. The EU’s proposed defense industrial strategy, aiming to boost joint weapons procurement and reduce reliance on U.S. Systems, isn’t just about burden-sharing; it’s about survival. Similarly, accelerating energy diversification through hydrogen partnerships with North Africa and expanding grid interconnectivity isn’t merely climate policy—it’s geopolitical insurance. As former NATO deputy secretary general Rose Gottemoeller told me in a recent interview, “The alliance can survive a difficult U.S. President. It cannot survive if its members stop believing in collective defense. Rebuilding that belief starts with Europeans investing in their own capacity to deter aggression—without waiting for permission from Washington.”
This moment demands a recalibration, not a rejection. Populist leaders aren’t suddenly going to embrace liberal internationalism—but they may be forced to acknowledge that their political projects depend on a stable, rules-based order they’ve spent years undermining. The irony is palpable: the very system they vilify as elitist and oppressive is the scaffolding that allows their brand of nationalism to exist without triggering immediate catastrophe. Trump’s excesses have lifted the veil, revealing that for Europe’s populists, the true danger isn’t Washington’s criticism—it’s the prospect of an American president who makes their rhetoric dangerously, fatally real.
What do you think—can Europe’s populist leaders adapt to a world where their ideological hero is now their greatest liability, or will this fracture ultimately reshape the continent’s political landscape? Share your thoughts below.
