U.S. claims to speak with one voice on N. Korea

"Article I of the US Constitution is very clear about that", he added.

North Korea offered a hostile response to the US for brokering a sanctions deal with 14 other countries from the U.N. North Korea made it known that it was only threatening the USA and that the other participating countries need not worry.

Frustrated with decades of unsuccessful USA efforts to rein in North Korea's nuclear weapons program, Trump fired back at the isolated regime with a bluntness that surprised both markets and governments, seeming to take his own Cabinet officers and aides by surprise.

After White House aide Stephen Miller praised President Donald Trump for his oratory skills, author J.K. Rowling found a reason to unearth an old tweet of the president to make a literary point. Is this a calculated escalation, a return to brinkmanship in order to get North Korea to bend? "And President Trump is not helping the situation with his bombastic comments".

"President Trump is the most gifted politician of our times and he's the best orator to hold this office in generations", Miller said. "We call on the Pyongyang regime to listen to that clarity, to act on that clarity and halt its nuclear program, halt its intercontinental ballistic missile program". Meyers said before lampooning Trump, saying: "Kill a hostage?"

"I$3 f one of the military options that the administration is looking at is a preemptive war on the Korean peninsula launched by the United States, that would require the authorization of Congress", Sullivan said on Fox News's "The Story".

Sullivan said if the United States is attacked first, Trump would have more leeway to respond.

"Obviously, as the commander in chief, the president can react to attacks on the country in a way that he has broader authority on that", he said. "It is ratcheting up the pressure on North Korea", she said.

Mr Sullivan said if North Korea were to attack the United States first, Trump would have more authority to respond.