A prominent U.S. expert said Wednesday that President Donald Trump's recent reference to North Korea as a "nuclear power" appears to be a "realistic" view of North Korean threats following a look at how the security challenge has evolved.

Trump, who held unprecedented summits with Kim during his first term and has touted their personal rapport, said last week he would 'reach out to him again'

North Korean leader Kim Jong Un has inspected a facility that produces nuclear material and called for bolstering the country’s nuclear capability, state media reported Wednesday, as the North looks to increase pressure on the United States following the inauguration of U.