Jonas Bornemann

Jonas Bornemann

@jonasbornemann.bsky.social

Assistant Professor of European Law at Rijksuniversiteit Groningen @groningeneulaw.bsky.social | re:constitution fellow 2024/2025 European Constitutional and Migration Law

2,751 Followers 1,286 Following 70 Posts Joined Nov 2023
2 months ago
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Comment la migration masque les divisions européennes en matière de sécurité | Euractiv FR

Comment la migration masque les divisions européennes en matière de sécurité

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2 months ago

24 Member States request Commission to make enhanced cooperation proposal (ie using EU law, but not for all Member States) for EU loan to Ukraine, on the basis of EU summit conclusions - data.consilium.europa.eu/doc/document...
Proposal likely to come today (listed on the Commission docs register)

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2 months ago

EU asylum law - decision on implementing new law on resettlement of refugees - EU Member States have committed to resettling the whopping (/s) number of 10,000 refugees over two years - eur-lex.europa.eu/legal-conten...

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2 months ago
Press release summary of the judgment. Full text in the link Post image

CJEU, border controls

🚨 MASSIVE defeat for Frontex in two judgments - the agency is liable if it assists Member States to do pushbacks etc in breach of human rights; rules of evidence are simplified for migrants curia.europa.eu/jcms/jcms/Jo...

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2 months ago

Big news on the liability of Frontex and the burden of proof in cases of alleged pushbacks: curia.europa.eu/jcms/upload/...

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2 months ago
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🇪🇺⚖️🇵🇱 Revenge is a dish best served cold (and after five years). Moments ago, CJEU, in the case Commission v. Poland, found that the Polish Constitutional Tribunal has not only violated EU law with its anti-EU rulings, but also was (is) not an independent court established properly by law. 1/

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2 months ago
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🧵 Let's break down the six security guarantees that European leaders have just committed to Ukraine as part of a future peace deal.

Note: this is a commitment on paper for now.

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3 months ago
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EU closes deal to slash green rules in major win for von der Leyen’s deregulation drive Controversial “omnibus” bill saw center-right EU lawmakers side with the far right to water down environmental standards.

🚨🚨Major #EU news: More than 80 percent of Europe’s companies will be freed from environmental reporting obligations after @europarl.europa.eu and @consilium.europa.eu reached a deal on a proposal to cut green rules on Monday. 🧵
www.politico.eu/article/eu-s...

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3 months ago

This afternoon, we had a meeting of the Coalition of the Willing. I updated President Zelenskyy and leaders present on two key priorities - support for Ukraine and increasing European defence preparedness.

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3 months ago

Today, the EU has shown that we can deliver.

The Council reached a general approach on the safe third country concept and the first EU safe country of origin list. These are all measures that will help process claims more effectively and reduce pressure on asylum systems.

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3 months ago
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Unglaublich‼️Schon wieder reißt die EVP die Brandmauer ein – diesmal beim Waldschutz. Statt Kompromisse mit der Mitte zu suchen, peitscht sie ihre Maximalposition mit extrem Rechten durch‼️ Das schwächt das EU-Entwaldungsgesetz, bestraft vorbildliche Unternehmen & gefährdet bis zu 150.000 Hektar Wald.

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4 months ago
Docent Tenure Track in The EU in Global Politics Docent Tenure Track in The EU in Global Politics

🚨 We’re hiring @giesugent.bsky.social:
Join us as TT Professor in "The EU in Global Politics".
Come research & teach in the heart of Europe 🇪🇺📍Ghent.
📝 Apply: jobs.ugent.be/job/Ghent-Do...
📅 Deadline: 27/11/2025
#AcademicJobs #EUStudies #GhentUniversity #TenureTrack #GlobalPolitics

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4 months ago
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Return hubs – innovative lawmaking or a dangerous legal experiment? By Jonas Bornemann , Assistant Professor of European Law at Rijksuniversiteit Groningen and re:constitution fellow 2024/2025 and Isabe...

For a legal discussion of the feasibility of return hubs, see our blog post here (/w Isabella Brockman): eulawanalysis.blogspot.com/2025/06/retu...

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4 months ago

Some positive elements included, such as a the principle of voluntary return. So-called 'return hubs' still in, raising significant legal problems.

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4 months ago
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Commission adopts stricter visa rules for Russian nationals - EU Law Live The European Commission has adopted stricter visa rules for Russian nationals, citing increased security risks linked to Russia’s ongoing war of aggression against Ukraine and recent incidents of sabotage, …

Commission adopts stricter visa rules for Russian nationals

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4 months ago
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(PDF) EU travel bans between crisis governance, migrants' fundamental rights and institutional backlash PDF | This paper examines the fundamental rights implications of travel bans introduced by EU Member States during the Covid-19 pandemic and the... | Find, read and cite all the research you need on R...

Such a policy may not just be grills to the mill of Russian propaganda, but it may also conflict with EU non-discrimination law standards, as I argue in this pre-print (a revised version is forthcoming in the European Yearbook of Constitutional Law).

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4 months ago

The @ec.europa.eu just adopted rules banning new multiple-entry visas for Russian nationals. From now on, only single-entry visas will be issued, with rare exceptions. The move aims to tighten security and pressure Moscow over its war in Ukraine but may be legally and politically problematic:

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4 months ago
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🇪🇺⚖️🇵🇱 On 2 December, CJEU will hear the case of European judicial associations challenging the Commission's assessment that Poland met the rule of law milestones for unlocking the RRF (recovery fund). Ahead of the hearing, the Court has asked the Polish government an extremely difficult question:

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4 months ago

Wir @swp-intsecurity.bsky.social @swp-berlin.org suchen zwei neue Kolleg:innen zur Rückkehr des militärischen Wettbewerbs in Europa und zur Zukunft maritimer Sicherheit.
Unbedingt bewerben!
@liviuhorovitz.bsky.social @julianasuess.bsky.social @alexandrapaulus.bsky.social

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5 months ago

Such a joy to see this research with @detershenning.eupolicy.social.ap.brid.gy published in @epsrjournal.bsky.social!

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6 months ago

Such an honour to have contributed to this volume compiled by the Young Network TransEurope! @bbaw.bsky.social #YNT

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6 months ago
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As a policy #trainee, you’re not just observing—you’re part of the process.

Wondering what it's like to work for us? Watch this video 👇

Interested in joining us? The application period is now open

👉Find out more: europa.eu/!jVJdHm

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6 months ago
Original post on eupolicy.social

Citation: Henning Deters, Jonas Bornemann (2025): Authority transfer and governmental legal contestation before the court of justice of the EU, European Political Science Review (first view), DOI https://doi.org/10.1017/S1755773925100118

Thanks are due to (among others) @brekke who helped with […]

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6 months ago
Plot showing the number of infringement proceedings, interventions per infringement case, and percentage of interventions for the Commission. Please refer to paper for detailed image description.

Since the turn of the century, the Commission has famously litigated ever fewer infringement cases. When the Commission was still increasing the number of cases, MS did not respond with more opposition right away. Later on, they continued to oppose the […]

[Original post on eupolicy.social]

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6 months ago
Plot showing Actions for Annulment against Administrative EU Acts. Please refer to paper for detailed image description.

MS also increasingly litigated against EU-level implementation decisions until the early 2000s, when the Commission relaxed its control over agricultural policy and subsidies. These policy areas are responsible for 3/4 of all annulment cases against the EU […]

[Original post on eupolicy.social]

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6 months ago
Plot showing the number of actions for annulment against legislative acts. Please refer to the paper for a detailed image description.

EU legislation is subject to increasing legal mobilization in response to the pooling and delegation of law-making powers to the EU. Recently, mobilization has plateaued, but this may change as the new MS grow more confident. The corresponding annulment […]

[Original post on eupolicy.social]

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6 months ago
Table showing the main direct action procedures with litigant constellations and authority dimensions

The take-home message: Overall, mobilization against EU legislation, implementation, and enforcement is growing, but the salience and polarisation of the respective Court proceedings depends on how much authority the EU wielded in these domains in different […]

[Original post on eupolicy.social]

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6 months ago

This work is the result of a truly inspiring interdisciplinary journey that began almost three years ago.
Thanks to @detershenning.eupolicy.social.ap.brid.gy, we found a research angle that allowed us to combine #politicalScience and #legalscience perspectives to explore MS litigation activity.

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By analysing annulment and infringement cases involving Member States between 1954 and 2022, we observe that mobilisation against EU legislation, implementation is overall growing. We note that the number of governmental interventions and polarisation depend on the scope of authority transferred.

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6 months ago

In our article, we ask whether the transfer of authority to EU institutions shapes Member States' legal contestation before the @eucourtofjustice.bsky.social. How do national governments mobilise against the transfer and exercise of EU authority?

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