For background on all these institutions, see these links: SSM, SRM & SRF.
One of those bringing the complaint is Prof Markus Kerber of Europolis (who has been heavily involved in previous suits). According to the press release the key point of the challenge is:
- That the banking union plans overstep power given in Article 127 TFEU. This is the article which was used to create the SSM in the ECB. Essentially it seems the group take issue with the idea that this could be done since the article refers only to conferring “specific tasks upon the European Central Bank concerning policies relating to the prudential supervision of credit institutions”. The thinking seems to be that, article 127 allows for the ECB to take on certain specific tasks, but not to turn the ECB into the eurozone's single supervisor, giving it complete supervisory control over certain banks and, to an extent, superiority over national supervisors (which some might see as a transfer of power).
- A key question will be around the amount of power transferred to the ECB. (There is no doubt it has become one of the most powerful institutions in the eurozone crisis both due to de facto action and de jure changes. There are certainly valid questions to be asked here, particularly since the level of democratic oversight is limited due to difficulties in combining this with its strict independence when it comes to monetary policy matters).
- Although the details are yet to be released, the complaint is also likely to question the legal base of creating the SRM inside the Commission and the pooling of national funds through the SRF. The main questions here relate to the level of control and oversight from the national level, particularly whether the Commission is the right institution to take on this new role and whether it is gaining too much power - not least since the decision was taken under qualified majority voting due to the use of the single market legal base.
The UK Government has also made noises about concerns around the use of the single market article (114) to create a new eurozone architecture.
As the FT notes, these cases take some time to work their way through the system and the GCC has shown a track record of generally siding with the EU, albeit often with some caveats.
Given said track record and the previous opinions expressed by the Council legal service, we can’t help but feel the outlook is already dim for this challenge. As with all eurozone policies, overturning it would likely cause huge market disturbance and shift the eurozone back towards an existential crisis – something the court is usually quite aware of.
That said, the court could add caveats in terms of the democratic assent required for banking union and the role of the Bundestag where funds are concerned. It could also pass the judgement onto the European Court of Justice, as it has done with the case over the ECB’s bond purchase programme the OMT, not least because it seems to mostly question the legality under EU treaties.
In any case, this is certainly one to watch and not just from the eurozone perspective. Any ruling could well set a precedent and have a role in determining how far the eurozone can push certain treaty articles in terms of legal bases but also how it fits with national constitutions. In other words, it could be important in determining the issue of euro-ins vs. euro-outs as the EU develops.