The AfD's 38.2% earthquake and the CDU's worst day since 1945
On Sept 20 the AfD won Mecklenburg-Western Pomerania with 38.2% while Merz's CDU crashed to 4.9% — below the threshold. In Berlin the Left came first and the AfD third at 16%. Merz called it a disaster. The firewall is now the only wall still standing.
Published 30 September 2026 · 13:06 GMT

Key facts
- In the Sept 20 state elections, the AfD won Mecklenburg-Western Pomerania with 38.2% of the vote. State electoral office
- The CDU fell to 4.9% in the state — below the 5% threshold, its worst result in any German election since 1945. State electoral office
- In Berlin's vote, the Left finished first, the CDU second, and the AfD third at 16%. Berlin electoral office
- Chancellor Merz publicly called the outcome 'a disaster'. Chancellery
- Saxony-Anhalt voted earlier in September, extending the AfD's eastern run. State electoral office
The number was 4.9%, and it will be taught in German schools. In the September 20 state elections, the Christian Democratic Union — the party of Adenauer, of Kohl, of Merkel, the party that has governed Germany for most of the Federal Republic’s existence — fell below the 5% threshold in Mecklenburg-Western Pomerania. Its worst result in any German election since 1945. The party that built the republic is now, in one eastern state, extra-parliamentary: no seats, no voice, no existence in the legislature. Chancellor Friedrich Merz called the outcome “a disaster.” He was understating.
The winners were the Alternative für Deutschland. The AfD took Mecklenburg-Western Pomerania with 38.2% of the vote — not a plurality to be managed but a dominance to be reckoned with. In Berlin’s vote the same day, the Left finished first, the CDU second, and the AfD third at 16% — a result that would once have been the scandal, now merely the footnote. Saxony-Anhalt had voted earlier in September, extending the AfD’s eastern run. The map of Germany is now two countries: in the west, the old party system creaks on; in the east, the AfD is the strongest political force, and the east-west divide has hardened from a gap into a structure.
The firewall and the flood
German politics has one sacred rule, and the AfD’s rise is the story of its erosion: the Brandmauer, the firewall — the agreement among all other parties never to cooperate with the AfD, at any level, for any reason. The firewall was built to keep the far right out of power; it has become the defining question of German democracy, because a firewall that excludes the strongest party in the east is a firewall that excludes the east. In Mecklenburg-Western Pomerania, 38.2% of voters chose a party the system refuses to touch. The system’s answer — a coalition of everyone else — is mathematically possible and democratically vertiginous: a government representing the minority, against the plurality, in the name of democracy.
The domestic intelligence service, the Verfassungsschutz, has assessed the AfD as extremist — a designation the party is challenging in courts that will take years to decide. The classification matters less for its legal consequences than for what it reveals: the state’s immune system firing on the country’s most successful eastern party. The AfD’s supporters read the designation as proof of persecution; its opponents read the vote shares as proof the designation is deserved. Both readings radicalize. The firewall was supposed to contain the AfD. Instead, each election at 30-plus percent poses the question the firewall cannot answer: what do you do when the quarantined party is the patient’s largest organ?
Merz’s “disaster” is personal as well as political. He became chancellor promising to halve the AfD — to win back its voters by addressing their concerns on migration and the economy while holding the firewall. A year into the chancellorship, the AfD is not halved but hegemonic in the east, and the CDU has been erased in a state it once governed. The promise assumed the AfD’s voters were protest voters who could be won back. The 38.2% suggests they are something else: a constituency, with interests and identity, that has stopped protesting and started choosing.
How the east was lost
The AfD was founded in 2013 as an anti-euro party of economics professors — respectable, boring, doomed. The refugee crisis of 2015 transformed it: Merkel’s “we can do this” opened the door to a million asylum seekers and opened the AfD to a new identity as the party of the borders. The professors left; the radicals stayed. By the 2017 federal election the AfD was in the Bundestag; by 2024 it had won Thuringia — the first far-right state victory since the war — and the eastern run that Saxony-Anhalt and Mecklenburg-Western Pomerania have now extended.
The deeper history is reunification’s unfinished business. Thirty-six years after the Wall fell, the east remains poorer, older, and emptier than the west — the young having migrated west in the 1990s and 2000s, the industries having collapsed with the Treuhand’s privatizations, the promised “blooming landscapes” having bloomed selectively. The east’s grievance is not nostalgia for the GDR; it is the lived experience of being lectured by a west that managed the transition badly and then blamed the east for noticing. The AfD’s genius was to give that grievance a vocabulary: the Wende betrayed, the elites indifferent, the borders open.
Demographics sharpen the divide. The east is Germany’s oldest region — the young left, the old stayed — and older electorates vote their anxieties: pensions, care, the visible changes in towns where the bakery now has a different sign. Migration, the AfD’s fuel, is experienced in the east not as a labor market but as a symbol: the towns that received asylum seekers in 2015 with the least preparation now vote most heavily for the party that promises it will never happen again. The vote is substantially about borders, and borders are where the east meets the consequences of decisions made in Berlin.
What the world sees
The Western European lens is alarm with fatigue. German instability is now a European systemic risk. The EU’s great projects — the green transition, the defense buildup, the fiscal rules — all assume a Germany that can govern itself. A chancellor presiding over a CDU at 4.9% in the east cannot assume anything.
Washington’s lens is transactional impatience. The 4.9% is read in Washington as a data point about European reliability, not just German politics — another entry in the ledger of a continent that lectures while it fragments. The transatlantic relationship runs on predictability; Germany has stopped being predictable.
Moscow’s lens is vindication, openly enjoyed. Beijing’s lens is the supply-chain one, cooler than Moscow’s: political instability in Germany — the EU’s industrial core, China’s largest European trading partner — threatens the predictability Chinese firms price into their European investments. Whoever governs Germany, the factories must keep running.
Germany lectured the developing world on democratic hygiene for decades — the good-governance sermons, the conditionality, the report cards.
The CDU’s existential question
Below 5% is not a defeat; it is an extinction event. The threshold — the Sperrklausel, designed to keep Weimar’s fragmentation from recurring — means the CDU has no seats, no fraction, no parliamentary existence in Schwerin. For the party of Adenauer to be extra-parliamentary anywhere in Germany is a historical rupture: the CDU has governed Mecklenburg-Western Pomerania, contested every election since 1990, and presumed its place. The presumption is gone.
The rebuilding question is the one the party cannot ask itself: was the firewall the cause or the symptom? The firewall’s defenders say the CDU’s collapse proves the AfD must be contained — that 38.2% for extremists is the emergency the wall was built for. The firewall’s critics — increasingly audible inside the CDU’s eastern branches — say the wall caused the collapse: that refusing to engage the AfD’s voters on migration and the economy ceded the entire issue space to the AfD, and that the CDU died in the east defending a principle its voters stopped understanding. Both arguments will be made at the party conference. Neither can be proven. The 4.9% is the evidence, and it convicts everyone.
Berlin’s result — the Left first, the CDU second, the AfD third at 16% — is the capital’s own verdict: the old Volksparteien, the people’s parties, reduced to contenders; the Left’s strength in the eastern districts a reminder that the east’s radicalism has two flavors, left and right, united only in their rejection of the center. The capital that once was the firewall’s fortress now houses the parties the firewall was built against — in first and third place.
The economic engine
Beneath the culture war runs the economic engine, and it is the engine that makes the AfD’s rise structural rather than cyclical. Germany’s industrial model — cheap Russian gas, Chinese demand, the Mittelstand’s export excellence — has broken on all three sides at once. Energy prices, the highest in the industrialized world after the Russian cutoff, have made the chemical and steel industries uncompetitive; BASF’s Ludwigshafen, the world’s largest chemical complex, is a monument to an energy regime that no longer exists. Chinese demand, the growth story of two decades, has become Chinese competition, as BYD and CATL eat the auto industry’s future. The Mittelstand — the family firms that are Germany’s economic soul — faces the triple squeeze of energy costs, bureaucracy, and succession, as the founders’ children choose Berlin startups over Black Forest factories.
The east feels this first because the east has the thinnest cushion. Eastern industry never fully recovered from the Treuhand; eastern wages never converged with western ones; and the green transition’s costs — the heating law, the combustion-engine phaseout — land on households that cannot afford them. The AfD’s economic message is not sophisticated — back to cheap energy, back to the combustion engine, back to growth — but sophistication is not what 38.2% votes for. It votes for the party that names the pain: the deindustrialization that the governing parties describe as transformation.
The youth vote is the trend the old analyses miss. The AfD’s strongest growth has been among young men — the TikTok generation, the gamers and apprentices, the sons of the deindustrialized east who have never known the republic’s golden years. The party’s social media operation, the most effective in German politics, speaks their language: ironic, aggrieved, fluent in the memes. The firewall was built by the generation of 1968 against the generation of 1933. It is being stormed by the generation of 2005, which finds the whole edifice — the guilt, the caution, the Vergangenheitsbewältigung — to be someone else’s history. Demography is not destiny, but it votes.
Weimar’s shadow, and its limits
Every German crisis summons Weimar, and the summons deserves scrutiny. The Weimar Republic died when the center collapsed and the extremes — Communists and Nazis — devoured the republic from both sides. The parallel’s power is the 4.9%: a people’s party reduced to nothing, the center hollowing, the extremes — the Left first in Berlin, the AfD dominant in the east — advancing. The Federal Republic’s institutions were designed by people who had watched Weimar die: the 5% threshold, the constructive no-confidence vote, the firewall as a democratic immune response. The question is whether institutions designed against the last catastrophe can survive a different one.
But the parallel has limits, and honesty requires stating them. Weimar’s extremes were paramilitaries; today’s are parliamentarians. Weimar’s republic had no democrats; today’s has millions, including the 61.8% in Mecklenburg-Western Pomerania who did not vote AfD. The AfD governs no state, commands no army, and faces a constitutional order with seventy-five years of legitimacy. The danger is not a repeat of 1933 — history does not repeat — but a slower corrosion: the normalization of the firewall’s breach, the mainstreaming of positions once unsayable, the gradual redefinition of what German democracy considers acceptable. Corrosion is less dramatic than collapse. It is also harder to reverse.
The arithmetic of Schwerin
The immediate crisis is practical: how does Mecklenburg-Western Pomerania get a government? With the AfD at 38.2% and the CDU below the threshold, the remaining parties — the SPD, the Left, the Greens, perhaps the FDP’s remnants — must assemble a coalition of everyone-against-one. The arithmetic works; the legitimacy creaks. A government formed explicitly to exclude the plurality winner governs on a platform of negation, and negation is a poor program for the four years of hard choices — budgets, schools, the energy transition’s local costs — that await.
The precedent being set matters beyond Schwerin. If the firewall requires permanent grand coalitions of the shrinking center against the growing east, German politics becomes a two-bloc system: the AfD versus everyone else, the east versus the west, the 38% versus the 62%. Two-bloc systems are stable until they are not — and the moment the “everyone else” bloc fails to deliver, on the economy or on migration, its voters have exactly one place to go. The firewall contains the AfD. It also incubates it, by making every failure of the center an advertisement for the alternative.
For Europe, the stakes are the projects that require a functioning Berlin. The defense buildup — the Zeitenwende Merz inherited and must fund — needs parliamentary majorities and fiscal room. The EU’s fiscal rules, the green transition’s next phase, the common debt debates: all assume German leadership, and German leadership assumes a chancellor who is not presiding over his party’s extinction in the east. A Germany consumed by its firewall is a Germany absent from Europe — and a Europe without Germany is a debating society. Paris, Warsaw, and Brussels understand this. Their alarm is not moral. It is operational.
What to watch
Watch the federal polls: state elections move national numbers with a lag, and the question is whether 38.2% in the east translates into the high twenties nationally — the threshold at which the firewall becomes mathematically absurd. Watch Merz’s government: a chancellor who promised to halve the AfD and presided over its eastern hegemony must either change course or change chancellors, and the coalition’s patience is finite.
Watch the firewall debate through autumn — the CDU’s eastern branches, the business lobby that needs stable government, the constitutional lawyers gaming out minority coalitions. And watch the AfD itself, campaigning as the winners the results say they are: a party at 38% does not need the firewall to fall. It needs only to wait, growing, while the wall’s defenders argue about whether the flood is the water’s fault or the wall’s. The east has voted. The west has not yet decided what the vote means. That indecision is the AfD’s greatest asset.
The Western European lens is alarm with fatigue. Paris, Warsaw and Brussels have watched Germany — the EU's anchor — wobble through a year of AfD surges, and each record high forces the same question: who leads Europe if Berlin is consumed by its firewall? The Western read: German instability is now a European systemic risk.
Washington's lens is transactional impatience. An America that has its own populist government watches Merz's 'disaster' with unsentimental eyes: allies who cannot govern themselves cannot be counted on. The 4.9% is read in Washington as a data point about European reliability, not just German politics.
Moscow's lens is vindication, openly enjoyed. Russian state media has framed the AfD's rise as the West's chickens coming home — sanctions blowback, energy prices, migration — and 38.2% is presented as proof the German model is exhausted. The Eastern read from Moscow: the firewall was built to keep Russia out of German politics; German voters walked around it.
Beijing's lens is the supply-chain one. Political instability in Germany — the EU's industrial core, China's largest European trading partner — threatens the predictability Chinese firms price into their European investments. The Eastern read from Beijing is cooler than Moscow's: whoever governs Germany, the factories must keep running.
The Global South's lens is historical irony with a long memory. Germany lectured the developing world on democratic hygiene for decades; now its chancellor calls his own party's result 'a disaster' while a party flagged as extremist wins states. The Southern read is not glee but symmetry: democracy's report card is now being graded in Berlin, not just in the capitals that used to receive the lectures.
The harder Southern reading is about migration — the AfD's fuel. The party's 38.2% is substantially a vote on borders, and borders are where the South meets the North. Every point the AfD gains hardens the European migration regime the South navigates. The South reads German state elections as immigration policy by other means.
The consensus
- What we agree on
- On Sept 20 the AfD won Mecklenburg-Western Pomerania with 38.2%; the CDU fell to 4.9%, below the 5% threshold — its worst German result since 1945; in Berlin the Left finished first, CDU second, AfD third at 16%; Merz called it 'a disaster'; Saxony-Anhalt voted earlier in September.
- What we don't agree on
- Whether the firewall strategy can survive AfD results at this level — or whether the CDU must change the policies the AfD feeds on — is now Germany's central political debate.
- What we know
- In the former East the AfD is now the strongest political force; the east-west political divide has hardened into structure.
- What we don't know yet
- We do not yet know the federal polling impact, whether Merz's government changes course, or how the CDU rebuilds in states where it is now extra-parliamentary.
- What we expect
- Expect the firewall debate to dominate Berlin through autumn — and expect the AfD to keep campaigning as the winners the results say they are.
Sources
- State electoral office
- Berlin electoral office
- Chancellery