Germany’s informal political “firewall” against the Alternative for Germany (AfD) is coming under growing pressure, as long‑standing party rules, parliamentary tactics and intelligence findings collide. The firewall, a cross‑party praxis to avoid cooperation with the AfD, has been central to the strategy of centrist forces but has faced new strains in recent years.
Origins and purpose of the firewall
The metaphor of a “firewall” is used in German politics to describe a deliberate boundary intended to prevent parties considered extremist from gaining influence. It is explicitly framed as a defence of democratic norms. The Federal Office for the Protection of the Constitution (BfV), Germany’s domestic intelligence agency, has classified certain AfD state associations as “confirmed right‑wing extremist”, though it has not declared the party as a whole to be unconstitutional.
Whether the AfD in its entirety is acting against the Basic Law would require a formal process before the Federal Constitutional Court. Calls for a party ban have been repeated in public debate, but, as matters stand, no application to ban the AfD has been filed.
Political practice and recent ruptures
The firewall has not always been a single unified rule. The centre‑right Christian Democratic Union (CDU) adopted a 2018 resolution that rejected “coalitions and similar forms of cooperation” with the AfD and with the Left Party. In practice, that has sometimes meant choosing to form majorities that explicitly exclude AfD votes and declining to accept positions secured with AfD support.
However, the practice frayed in January 2025, when a CDU motion in the Bundestag calling for the rejection of certain asylum seekers passed with AfD backing. At the time the CDU was the main opposition party under its then leader, and the vote marked a clear departure from prior abstention or refusal to accept AfD‑supported measures.
“Under my leadership, there will be a firewall against the AfD.”
The remark is widely associated with Friedrich Merz, who used the phrase after becoming CDU leader in December 2021. Yet the firewall as a concept predates any single figure and has been embedded in party resolutions and public rhetoric across the centrist spectrum.
Legal and democratic consequences
The distinction between parts of the AfD being labelled extremist by the BfV and the party as a whole being judged unconstitutional is significant. A full finding that the party acts against the constitution would require proceedings before the Federal Constitutional Court. Until such a determination is sought and reached, political actors must decide how to respond within parliamentary and electoral rules.
That decision is not purely legal. It is political and strategic. Parties must weigh the short‑term calculus of parliamentary votes against the long‑term aim of marginalising actors seen as hostile to democratic norms. The January 2025 vote demonstrates how tactical considerations can undermine a previously firm line.
What the positions amount to
- BfV classifications: individual AfD state associations deemed “confirmed right‑wing extremist”.
- Party rules: CDU 2018 resolution rejecting cooperation with AfD and the Left Party.
- Political practice: January 2025 Bundestag vote where a CDU motion passed with AfD support, signaling a crack in the firewall.
| Item | Detail |
|---|---|
| CDU resolution | 2018 – rejection of coalitions and cooperation with AfD and Left Party |
| Leadership pledge | December 2021 – Friedrich Merz pledged a firewall against the AfD |
| Parliamentary shift | January 2025 – CDU motion passed with AfD support |
| Intelligence finding | BfV: some AfD state associations classed as confirmed right‑wing extremist |
How centrist parties respond going forward will shape German politics. If the firewall is to be maintained, parties will need consistent, enforceable standards for refusing cooperation and for handling votes where the AfD is involved. If strategic imperatives continue to override those standards, the practical effect of the firewall will be further eroded.
For now, the firewall remains a contested instrument: a political norm backed by some formal rules and intelligence assessments, but one without a final legal underpinning and one vulnerable to tactical breach.
