Joe Biden's son's verbal attack on US President Hunter Biden: Trump has the nuclear codes, but he might not find Vietnam on the map! Hunter Biden, the son of former US President Joe Biden, questioned Donald Trump's historical and geographical knowledge in sharp statements. "Trump has the nuclear codes, but I don't think he can put Vietnam on the map right now," he said. Hunter Biden emphasized that he takes this very seriously and added: "I don't think Trump is stupid, but I believe he is completely ignorant of history and is not interested in anything but himself."