I’d like to add something.

Why do we need to look beyond trump’s mental diarrhoea? To soothe trump with a pacifier in the shape of Greenland? What is left that could be negotiated?

Trump is like one of these absolutely obnoxious kids from supernanny constantly throwing tantrums. The supernanny advised to be calm but firm. The most important thing: consequences and consistency. That’s exactly what Europe is finally starting to do.