North Korea called U.S. National Security Adviser John Bolton a "war monger" and "defective human product" Monday for saying Pyongyang's recent missile tests violated UN Security Council resolutions, AP reports, citing state media.

Why it matters: As North Korea criticized Bolton for his comments, President Trump said at a news conference in Tokyo "good respect" has been built between the U.S. and North Korea. "I personally think lots of good things will come with North Korea. I may be right. I may be wrong,” he said. "We’ll see what happens."

The big picture: During an appearance on NBC's "Meet the Press" Sunday, White House Press Secretary Sarah Sanders downplayed the significance of North Korea's recent missile tests, saying none of them have posed "a threat" to the U.S. or its allies.