President Donald Trump responded to Chinese criticism over his efforts on North Korea on Wednesday by proclaiming that a recent visit by a Chinese envoy to the country “had no impact.”

“The Chinese Envoy, who just returned from North Korea, seems to have had no impact on Little Rocket Man,” Trump wrote in a tweet. “Hard to believe his people, and the military, put up with living in such horrible conditions. Russia and China condemned the launch.”

The Chinese Envoy, who just returned from North Korea, seems to have had no impact on Little Rocket Man. Hard to believe his people, and the military, put up with living in such horrible conditions. Russia and China condemned the launch. — Donald J. Trump (@realDonaldTrump) November 30, 2017

China announced that it would send an envoy to North Korea, and all other communist countries, this month to update them on the events of the Chinese Communist Party Congress in October. The Chinese government emphasized that the envoy would be there only to discuss communist matters and not the illegal North Korean nuclear program.

Trump’s comments follow criticism from Chinese state media that his administration’s policy on North Korea had “failed” after North Korea launched another ballistic missile over Japan on Tuesday.

“It’s fair to say that U.S. policy on North Korea has failed, and so has the policy of President Donald Trump,” the state-run outlet Global Times declared on Wednesday, adding that he “heightened the pressure on North Korea at the wrong time, intensifying the tensions on the peninsula almost to the utmost, leaving little space for diplomatic maneuvering.”

“Although the U.S. has demanded an emergency meeting of the U.N. Security Council, the international community has actually run out of leverage against North Korea,” it continues. “Pyongyang has gained tremendous confidence this time, so the Security Council’s condemnation and possible fresh sanctions are no big deal.”

The launch on Wednesday was the fifteenth missile test that North Korea has conducted over the course of 2017, and they have also tested hydrogen bombs while threatening to turn the United States into a “pile of ash.”

Since taking office, Trump has repeatedly urged China to do more to solve the crisis, and even threatened to entirely cut off trade with any nation that continues to trade with North Korea, presenting a real threat to the Chinese economy.

On Wednesday, the White House’s Ambassador to the United Nations Nikki Haley said that Trump had told Xi Jinping to cut off their oil supply to North Korea.

“President Trump called Chinese President Xi [Jinping] this morning and told him that we’ve come to the point where China must cut off the oil from North Korea. That would be a pivotal step in the world’s effort to stop this international pariah,” Nikki Haley said, adding that the regime will be “utterly destroyed” if it continues to pursue their nuclear ambitions.

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