Donald Trump has threatened to blow Iran’s major cities “to smithereens” if any harm comes to a presidential candidate in the wake of his second thwarted assassination attempt. The 45th President made the remarks during a campaign speech in North Carolina, responding to reports of a “real and specific” threat to his life from the Islamic Republic. Trump stated: “If I were the President, I would inform the threatening country – in this case Iran – that if you do anything to harm this person, we’re going to blow your largest cities and the country itself to smithereens.” In a rare bipartisan ral…