Sweden’s Narrow Left Win Tests Europe’s Anti-Far-Right Coalition Playbook

A thin majority, a bigger challenge

Sweden’s left-wing bloc has done what many thought impossible this year: it has returned social democracy to government in a country where the far right had been a permanent presence in the corridors of power for four years. But the margin is so thin that the real work — building a government — is where the story begins, not where it ends.

The Election Authority confirmed on Thursday that the four parties comprising or supporting the opposition bloc won 176 of the Riksdag’s 349 seats. The outgoing conservative-led government took 173. That is a majority of three. Some 50,000 votes — out of a electorate of 10.6 million — separated the two sides. In any other country, this would be a mandate. In Sweden, it is an invitation to very difficult negotiations.

Prime Minister Ulf Kristersson did not wait for the formalities. He resigned immediately, urging Speaker Andreas Norlén to begin the process of forming a new government. His letter, posted on X, was notably gracious — and understated. He wished Magdalena Andersson “good luck.” That single word carried more weight than most manifestos.

The Sweden Democrats stumble

The most consequential detail in a night full of them was not the narrowness of the left’s victory but the fact that the Sweden Democrats lost ground for the first time since entering parliament in 2010. The anti-immigration party fell to 17.5 percent, down three percentage points from 2022.

This matters beyond Sweden. The Sweden Democrats have been the template for Europe’s democratic conservative movement: a party that normalizes far-right politics, governs by influence if not by cabinet seat, and proves that anti-immigration sentiment can be electoral instead of electoral suicide. Their decline does not mean the movement is dying — but it does mean the template has developed a crack.

A suburb outside Stockholm, covered in some outlets, has already celebrated. The party’s own campaign appeared to pivot toward outrage and provocation rather than policy; some analysts have called it “rage-bait.” If that strategy failed in Sweden’s post-industrial towns, it raises uncomfortable questions for copycats across the continent.

The coalition puzzle

Andersson will face a far harder task than simply claiming victory. The left bloc is made up of four parties with deeply incompatible instincts about governance: the Social Democrats, the Left Party (Vänsterpartiet), the Greens, and the Centre Party.

The fault line is sharp. The Centre Party has said it will not serve in a government that includes cabinet posts for the Left Party. The Left Party has insisted on at least one ministerial position. Andersson herself has ruled out including the Left Party in a coalition — but she needs their support to survive a confidence vote. That is a contradiction wrapped inside a knot.

She will also need to reconcile her own party’s traditional welfare-state priorities with the Greens’ climate agenda and the Centre Party’s rural and liberal economic interests. The Centre Party, in particular, has shifted significantly to the right on migration since the last election cycle, and it will not forget that its voters expect results, not just ideology.

Parliament can vote on a new prime minister as early as September 29. Every week of delay is a week of uncertainty for markets, for defense planners, and for migrants waiting on residence permits. Andersson has governed before — she was prime minister in 2021 and 2022, and finance minister for seven years before that. But this is a different parliament, a narrower majority, and a more polarized Europe than when she last took the job.

What changes for the EU

The immediate question is defense policy. Sweden joined NATO in 2024 under Kristersson, a move that enjoyed cross-party support but was driven primarily by the centre-right government. Andersson has supported NATO membership and has not signaled any retreat. But the deeper question is what happens next.

Sweden has committed to raising defense spending, but the specifics are still being drafted. A left-wing government with a three-seat majority will find it harder to push through ambitious defense budgets than a comfortable centre-right majority would have. The Centre Party, in particular, will want to protect spending in its rural constituencies even as it shoulders responsibility for national defense. The Left Party will resist anything it perceives as militarism. The Greens will demand that any increase in defense spending be matched by increases in climate and development aid.

On migration, the direction of travel is less clear-cut than it appears. Andersson has campaigned on tightening asylum rules, and the Social Democrats have moved significantly rightward on this issue in response to the Sweden Democrats’ electoral pressure. But the Left Party and the Greens will pull in the opposite direction. The Centre Party sits somewhere in between. The new government will likely keep many of the restrictions introduced by the outgoing administration — but it will also face internal pressure to reverse some of them, particularly on family reunification and permanent residency.

Spanish Prime Minister Pedro Sanchez, one of Europe’s few surviving left-wing leaders, hailed the result as a victory for “the welfare state, social justice and the green agenda.” That framing will resonate in Brussels. But governance is not a framing exercise. A three-seat majority in a polarized parliament is not the same as a comfortable mandate.

The broader European context

Sweden’s result fits a pattern that has emerged across the continent in 2025: the far right loses ground at the ballot box, but the centre-left does not win easily. In France, the Netherlands, and Germany, similar dynamics have played out. The difference in Sweden is that the far right was inside the government — not just in parliament, but in cabinet, influencing policy on migration, integration, and law and order.

That makes the exit more significant. Sweden is now the first NATO member in Scandinavia to return to left-wing governance after a period of far-right-influenced rule. It signals that the normalization project of the Sweden Democrats has stalled, at least for now. But it also signals that the centre-left’s path back to power is narrower and more fragile than its leaders may want to admit.

The lesson for other European social democratic parties is mixed. On one hand, it proves that the far right can be defeated electorally. On the other, it shows how hard it is to govern afterward when the centre-left is internally divided and the centre-right has learned to absorb far-right pressure rather than confront it.

Andersson has a long political career behind her, but also a recent defeat to remember. She lost the premiership in 2022 after a single day in office, triggered by a tax dispute that exposed the fragility of minority governments. This time, the fragility is structural, not accidental. Three seats is not a foundation — it is a balancing act.

What happens next

The coming weeks will test whether Sweden’s left can govern or merely exist. If Andersson secures a coalition without the Left Party, she will need a formal support agreement — and the Centre Party will dictate terms. If she brings the Left Party into government, she risks fracturing the bloc from within. If she cannot form a government at all, Sweden faces another election, this time with even higher stakes and a more exhausted electorate.

Kristersson’s resignation was timely and dignified. Andersson’s next move will be far more consequential. Europe is watching, not because Sweden is a superpower, but because it is a mirror: a small, prosperous, neutral country that has just chosen between two visions of itself, and chose poorly for neither side.

The Sweden Democrats’ decline is real. But the left’s victory is thinner than it looks. In European politics, thin majorities tend to break under pressure. The question is whether this one holds long enough to matter.