President Donald Trump said Wednesday that North Korea possesses 57 nuclear weapons as he previewed a possible meeting with leader Kim Jong Un later this year.Trump made the remark while defending his relationship with Kim, arguing that his rapport with the North Korean leader is "a good thing," not a bad one.Trump’s unusually precise figure appears to be the first time a U.S. official has publicly put an exact number on North Korea’s nuclear arsenal. Public assessments have generally estimated that Pyongyang has roughly 50 to 60 assembled warheads, while warning that the country’s secretive p...