Trump made no mention of the masks or of the pandemic overall in a tweet Wednesday on his Independence Day plans. He thanked corporate donors for supporting "what will, without question, be a special evening".
Trump campaigned last year on a promise to deport large numbers of immigrants and build a wall on the US border with Mexico to help tackle illegal immigration and crime in the United States. Since he took office in January, he has also moved to ban US entry by people from select Muslim countries.
Trump critics say any efforts by the president to hinder an FBI probe could amount to obstruction of justice. Such an offense potentially could lead to Trump being impeached, although his fellow Republicans who control Congress have shown little appetite for such a move.
Trump cited progress on reaching an agreement on the North American Free Trade Agreement with Canada and Mexico, saying the final outcome would lead either to an improved trade deal or separate pacts with the two US neighbors. Trump said he was discussing two types of sunset provisions in which any of the countries could leave the deal.
Tu Jiaqing and Zhang Yanyan contributed to this story.
Trump did not pledge to lift the sanctions but said he welcomed an end to the "harsh relationship" the countries had over the past two months.
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Trump's heaping of praise on Kim sparked spirited discussions in Washington and beyond. The Washington Post published an opinion piece Tuesday afternoon with the headline "Trump is already getting played by Kim Jong-un".
Trump said on Saturday that the United States was also considering shutting the country's southern border with Mexico to control the spread of the virus, adding: "We hope we won't have to do that."
Trump traveled to the museum directly after arriving at Beijing Capital International Airport to start a three-day state visit to China.
Trust companies have more vigorously directed funds into businesses and infrastructure projects since the third quarter of 2018, an industrial insider said.