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The PSPP-ruling of the German Federal Constitutional Court has caused a lot of commotion and has already been described as “a declaration of war on the ECJ.” In my article “The ‘cooperative relationship’ between the German Federal Constitutional Court and the European Court of Justice after the PSPP Ruling – On the Viability of the European Constitutional Court Network,” which was just published in Der Staat, I analyze what consequences the first-time refusal to apply EU law in the German legal order has for the “cooperation relationship” between the FCC and the ECJ and what the future of the European constitutional court network may look like after this ultra vires case.

Here is the English abstract of the German written article:

The article analyzes the consequences of the PSPP ruling for the cooperative relationship between the German Constitutional Court and the European Court of Justice. It argues for a sober perspective instead of martial exaggerations and against apportioning one-sided blame. Rather, reciprocal cooperation and confrontation are inherent in the network structure of the judicial relationship. Although the ruling creates a crisis, it does not yet mark the end of the “cooperative relationship”. The idea that the judicial conflict can only be resolved by third parties, whether in the form of infringement proceedings or by a Mixed Grand Chamber for the delimitation of EU competences, underestimates the delicately balanced functioning of the judicial dialogue and harbors a worrying potential for escalation. The impulse to legally enforce the restoration of European legal unity despite fundamental dissent may end up escalating the judicial conflict and making a solution even more difficult.

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September 1st, 2025

September 1, 2025 – Appointment as professor of public law, especially public economic law, at Chemnitz University of Technology

I was appointed as new professor at Chemnitz University of Technology (TUC) on September 1, 2025, and have now received […]

Juni 28th, 2025

28 June 2025 – Presentation at the Humboldt-Princeton Workshop on “Separation of Powers and Judicial Independence” in Berlin

On 27 and 28 June 2025, I participated in an international workshop on “Separation of Powers and Judicial Independence” at […]

Juni 24th, 2025

24 June 2025 – Special Issue on the 50th Anniversary of the Solange I-Decision published in ZaöRV

The outcomes of the international conference marking the 50th anniversary of the Solange I decision of the German Federal Constitutional [...]
Mai 29th, 2025

May 29, 2025 – Presentation at the research workshop „The Political Universes of International Courts“ in Glasgow

On May 29, 2025, together with my research assistant Denise Köcke, we presented her current research project at the research […]

Mai 23rd, 2025

23 May 2025 – Participation in the Workshop “International Law and the Politics of Space” at Freie Universität Berlin

On 22 and 23 May 2025, I had the pleasure of participating as an invited guest in the workshop “International […]

April 1st, 2025

1 April 2025 – Interim Professorship at Chemnitz University of Technology

With great pleasure, I have taken on the interim professorship for Public Law, in particular Public Economic Law, at Chemnitz […]

Februar 1st, 2025

1 February 2025 – Seminar on the Backlash against Constitutional Courts and International Courts at the University of Göttingen

On 31 January and 1 February 2025, I held a block seminar at the Faculty of Law of Georg-August University […]

Januar 29th, 2025

29 January 2025 – Habilitation at Martin Luther University Halle-Wittenberg

On 29 January 2025, I completed my habilitation at Martin Luther University Halle-Wittenberg and was granted the Venia Legendi in […]

Januar 17th, 2025

17.1.2025 – Presentation at the Conference “The Autonomy of EU Law Under Pressure?” at WU Vienna

On 16–17 January 2025, the international conference “The Autonomy of EU Law Under Pressure? The Changing Landscape of the Interactions […]

Oktober 1st, 2024

October 1, 2024 – Interim Professorship at the University of Göttingen

In the Winter Semester 2024/25, I am serving as interim professor for the Chair of Constitutional Theory, Comparative Constitutional Law, […]