I found this sentence in a magazine:
Herr Minister, sind Sie mit den Ergebnissen des EU-Gipfels am 28. und 29. Juni in Brüssel zufrieden?
I understand this as:
Minister, are you happy with the EU-Summit outcomes in Brussels on the 28 and 29 of July?
However I am struggling with the article of Ergebnis. It appears to plural, and in the accusative case (it is the direct object of the sentence).
My German book tells me that a plural accusitive noun should be die, not den. What is going on here?