KEY POINTS
  • Trump late Thursday accepted an invitation to meet with Kim for nuclear talks by May.
  • "President Trump has kept Kim Jong Un off balance," says former Ambassador Nicholas Burns, making a meeting possible.
  • "This is a real shocker. This is a real surprise," says Burns. But he also warns, "They burned us."

President Donald Trump was able to back North Korean leader Kim Jong Un into a corner with tough military talk and deft diplomacy, former Ambassador Nicholas Burns told CNBC on Friday.

Trump accepted an invitation late Thursday to meet with Kim for nuclear talks by May.