you are aware that he doesn't actually believe that he "[...] could have convinced [..]"
it's a manner of speech
a instrument of telling a story
a way to express how completely absurd "US getting involved into Greenland" is for anyone who understands the land (geography/weather) and people even unrelated to geopolitical aspects like alienating allies
it's a manner of speech
a instrument of telling a story
a way to express how completely absurd "US getting involved into Greenland" is for anyone who understands the land (geography/weather) and people even unrelated to geopolitical aspects like alienating allies