Trump's remarks on Tuesday indicated he was walking back his remarks made at the Helsinki summit at which many in the US believed he was publicly siding with Putin in attacking the US intelligence community.
Trump spokesman Brian Morgenstern said the president was being briefed on economic stimulus negotiations and the progress of Hurricane Delta towards the US Gulf Coast.
Tu calls the "single-window system" a key step toward realizing trade facilitation, adding that the current cargo clearance procedures in most cities are time consuming. For example, he said, companies need to get their goods to both cargo as well as the inspection and quarantine department to finish two examinations before the goods are exported.
Trump's signature brought an end to a partial government shutdown - or closure of federal agencies - that had been triggered in the early hours of Friday as Congress was still debating the budget deal.
Trump said in a tweet on Sunday morning that a "big price" would be paid for what he said was a chemical weapons attack in Syria.
Trump was elected by a mostly white, working class population fed up by a number of problems they see plaguing the United States - from illegal immigrants they believe are taking their jobs, to high unemployment in rural areas and a sense of being forgotten by Washington.
丹东嘴角汗毛
Trump said Saturday that his country will pull out of the INF Treaty, which was signed in 1987 between the Soviet Union and the United States on the elimination of intermediate-range and shorter-range missiles.
Trump also has blasted Sessions frequently and said last week "I don't have an attorney general."
Trump and Kim met for the first time in Singapore in June. Despite the hype of the landmark first summit, the one-day meeting produced only a vague declaration about a nuclear-free Korean Peninsula without describing when and how it would occur.
Trump has demanded renegotiations of trade deals such as the North American Free Trade Agreement (NAFTA) and the US-Korea Free Trade Agreement (KORUS).