Trump at the opening of a NATO leaders' meeting in London on Tuesday criticized the impeachment push as "unpatriotic" and "a bad thing for our country".
Trump has also reportedly questioned Amazon’s relationship with the U.S. Postal Service, citing a “free ride” even though aides have told the president that Amazon drives a lot of revenue to the government agency.
Trump took a dig on Tuesday at Nadler and House Intelligence Committee chairman Adam Schiff, one of the president's strongest critics in Congress about the Russia investigation.
Tu said Anban Intelligence's solutions have been in trial operations in small and big cities such as Sanya, Hangzhou, Shanghai and Chongqing. The company will assist the authorities to promote lawful operation of home-sharing services.
Trump has been advocating a border wall but Congress has repeatedly refused to approve funding for it, slammed by Democrats as costly and ineffective.
Trudeau's official visit to China began on Sunday and concludes Thursday, during which he attended the second meeting of the Annual Dialogue Between the Chinese Premier and the Canadian Prime Minister.
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Trump has made clear that he would seek a second term since taking office early 2017.
Trump encouraged conservatives to have a unified voice on the issue.
Trump also charged that Argentina and Brazil have manipulated their currencies, but few analysts agreed, and the US Treasury Department didn't mention either nation in its recent currency report.
Trump's comments will disappoint alliance leaders who had hoped for a public commitment from the US president to NATO's security guarantees, which he called into question during his presidential campaign last year.