When asked by the panel moderator if he would run and "pick up the reins" after his father leaves office, his initial reaction was: "Here we go. Well... oh boy," to faint applause from the audience, adding, "it's an honour to be asked and an honour to see that some people are okay with it."

Meanwhile his father has hinted repeatedly at the possibility of a third term as US President --- something that the Constitution does not allow under normal circumstances.

Donald Trump Jr has hinted that he could run for the US presidency himself in future, saying “maybe one day” it will happen and acknowledging “that calling is there”.