North Korea has again insulted President Donald Trump, calling him a “heedless and erratic old man” after he tweeted that North Korean leader Kim Jong Un wouldn’t want to abandon a special relationship between the two leaders and affect the American presidential election by resuming hostile acts. A senior North Korean official said in a statement that his country wouldn’t cave in to U.S. pressure because it has nothing to lose and accused the Trump administration of attempting to buy time ahead of an end-of-year deadline set by Kim for Washington to salvage their nuclear talks.