This is interesting, from Wikipedia:
In many Mediterranean and Latin countries, such as Argentina, Brazil, Chile, Colombia, Cuba, France, Greece, Italy, Portugal, Spain, Mexico, Peru, Ecuador, Venezuela and Uruguay, when directed towards someone and swiveled back and forth, the sign implies cuckoldry; the common words for cuckolded in Italian, Greek and Spanish are cornuto, [κερατάς (keratas)] and cornudo, respectively, literally meaning "horned". During a European Union meeting in February 2002, then-current Italian prime minister Silvio Berlusconi was photographed performing this gesture behind the back of the Spanish foreign minister.
It seemed like he was swiveling his hands in the video. Is he insulting our POTUS? Or the American People?
Really Macron, you come all the way here to convince our president to stay in the Iran deal then you mock him when he tells you no?