At the end of May, he received the regional president of Catalonia, the minister-president of Salzburg, the first minister of Scotland, the chief ministers of Flanders and Wallonia and the ministers for European/federal affairs of Bavaria and North Rhine-Westphalia, who are pressing for the role of constitutionally recognised regions in the European Union to be strengthened.
Toukokuun lopulla hän nimittäin tapasi Katalonian, Salzburgin, Skotlannin, Flanderin ja Wallonian ministeripresidentit sekä Baijerin ja Nordrhein-Westfalenin Eurooppa-ministerit, jotka vaativat perustuslaillisesti tunnustettujen alueiden painoarvon vahvistamista Euroopan unionissa.