President of the German Constitutional Court  Andreas Vosskuhle: court has asked the European Court of Justice for an expedited ruling on whether the ECB crisis-era asset purchase programme, worth over €2.3 trillion, broke the bank’s own ban on financing governments.  Photograph: Kai Pfaffenbach/Reuters

The campaign of Germany’s far-right Alternative für Deutschland against European Central Bank bond-buying got a shot in the arm on Tuesday with a refe(...)