North Korea's growing nuclear and missile threat is perhaps the most serious security challenge confronting U.S. President Donald Trump.
Fresh off the heels of a two-week, public-funded recess, all 100 senators have been requested at the White House for a briefing on the unfolding events on the Korean Peninsula. During the meeting, the lawmakers will be allowed to air their views and ask questions about the matter.
A senior aide, said it was President Trump's idea to hold the meeting at the White House.
The briefing was originally scheduled for a secure room at the Capitol, but was changed after President Donald Trump suggested a shift to the White House, according to congressional aides cited by Reuters.
White House officials regularly go to Congress to brief on national security matters, but it is unusual for the whole Senate to go to the White House.
It follows a lunch meeting Mr Trump held with ambassadors from United Nations member states on the security council on Monday where he emphasised USA resolve to stop North Korea's progress.
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"The status quo in North Korea is unacceptable and the council must be prepared to impose additional and stronger sanctions on North Korean nuclear and ballistic missile programs", Mr Trump said at the meeting.
Asked what would prompt U.S. action, Haley told NBC that "if you see him attack a military base, if you see some sort of intercontinental ballistic missile, then obviously we're going to do that".
President Trump talked to China's President Xi and Japan's Prime Minister Shinzo Abe on Monday over the escalating situation. He stayed on message - he was in front of the cameras to apologize, he came across as very honest, and he showed, and possibly learned, that is it OK in Washington to admit you are human and are flawed.
In recent weeks, Washington has expressed mounting concerns at Kim Jong-un's ambitions to develop nuclear warheads capable of striking the U.S. mainland.
It is feared that North Korea may conduct another nuclear test during the 85th anniversary of the Korean People's Army on Tuesday. Trump spoke about Syria, North Korea, immigration, and infrastructure spending. Russian Federation also expressed similar fears and called on Trump to exercise restraint.
Indeed, on Monday, the USA and South Korea expressed that no more missile or nuclear tests would be tolerated, comments that suggest tensions could literally blow up into all-out war at any moment.
Total imports from the North by China - Pyongyang's sole major diplomatic ally and chief trading partner - stood at $114.56 million last month, down from 176.7 million in February, according to Chinese customs data.