Mark Rutte's line appeared to refer to the president's F-bomb outburst.

Mark Rutte, known as the ‘Trump whisperer’, said the president was heading for another ‘victory’ in Wednesday’s Nato summit

Un papà che alza la voce, il siparietto a margine vertice all’Aja

Il segretario della Nato, visibilmente compiaciuto, si rivolge a Trump con l'appellativo di "daddy" [Video]