The UN Security Council unanimously adopted a new resolution on Tuesday imposing new sanctions on Pyongyang, including limiting its oil imports, banning its textile exports and restricting overseas firms from hiring DPRK citizens.
The UK is known for its pioneering spirit.
The US president also voiced dissatisfaction about outgoing British Prime Minister Theresa May and her handling of Brexit. "I have been very critical about the way the UK and Prime Minister Theresa May handled Brexit. What a mess she and her representatives have created. I told her how it should be done, but she decided to go another way," he tweeted.
The United States launched a probe into whether imports of Chinese steel are a national security threat. A rarely used legal tool, known as Section 232 investigation, was invoked to launch the probe.
The US will ultimately suffer from its opportunism and egoism on secession issues, it added.
The UN and Japan also announced new funding to fight the virus.
西安轻微的血管瘤
The US Commerce Department announced a preliminary decision against Chinese aluminum foil product exporters last Friday. The duties would range from 96.81 percent to 162.24 percent.
The US Bureau of Labor Statistics reported the country's unemployment rate at 7.9 percent in September, with 12.6 million people unemployed. The International Monetary Fund has forecast the US economy will shrink by 4.3 percent and China's economy will grow at 1.8 percent this year.
The US president also reiterated the offer he made at a post-summit news conference on Tuesday that the US would stop military exercises with South Korea while the DPRK negotiated on denuclearization.
The United States and Brazil have recognized Guaido's presidency, and Trump has warned that "all options are on the table."