Germany’s political firewall against the Alternative for Germany has entered a more difficult phase. In Saxony-Anhalt, the AfD won 43.8% of the vote on 6 September, while the CDU finished a distant second on 17.2%. The result gives the AfD 39 seats in an 83-seat parliament: dominant, but three seats short of an outright majority.
That distinction matters. The election has not handed the AfD an automatic government. It has handed every other party a coalition problem.
The CDU, SPD and Greens together hold 31 seats. The Left has eight and the BSW five. A majority exists without the AfD, but assembling it requires parties to cross political boundaries that have long been treated as more than ordinary negotiating positions. For the CDU in particular, the arithmetic collides with two established taboos: it rejects cooperation with the AfD and has also maintained a formal distance from the Left.
The depth of the shift is visible in the constituency map. The AfD won 38 of 41 direct mandates. The CDU won none, reversing the pattern of 2021, when it dominated direct contests. The Left took the remaining three urban constituencies in Magdeburg and Halle. This was not simply a proportional vote surge. It was a territorial takeover across most of the state.
The next test will come through parliamentary procedure. A party can influence institutions without leading a formal coalition. Votes on the speaker of parliament, committee leadership, legislative timetables and eventually a minister-president can all create moments in which other groups must decide whether case-by-case cooperation counts as breaking the firewall. The distinction between a coalition agreement and an individual vote may become politically more important than it has been in modern German politics.
This is why Saxony-Anhalt matters beyond its population size. The federal party system has relied on the assumption that an AfD electoral advance can be contained by a sufficiently large coalition of everyone else. At 43.8%, that method becomes mathematically and politically expensive. The more seats the AfD holds, the broader and less ideologically coherent any alternative majority has to become.
The election also carries a federal message because turnout reached 77.8%, the highest in a Saxony-Anhalt state election since reunification. The scale of the AfD result cannot easily be explained by apathy among its opponents. Voters turned out in large numbers and still produced the party’s strongest position in the chamber.
For Chancellor Friedrich Merz and the CDU leadership, the problem is therefore strategic as well as regional. A harder rhetorical line against the AfD does not solve coalition arithmetic; moving closer to AfD positions risks validating the challenger; and cooperation across the centre and left can itself become an AfD campaign argument about an establishment closing ranks.
None of those dilemmas means an AfD-led government is inevitable. The party does not have a majority and cannot elect a government alone. But the result changes the bargaining environment. The firewall is no longer tested only by opinion polls or hypothetical coalition diagrams. It is being tested by concrete votes in a parliament where the AfD is only three seats from control.
The immediate timetable is institutional rather than ideological: the new Landtag must organise itself and a government must be assembled. Those votes will reveal whether Germany’s anti-AfD strategy remains a shared rule across the other parties, or becomes a series of narrower decisions made under the pressure of a radically altered electoral map.