President Donald Trump put Russian President Vladimir Putin on notice, and issued some harsh words to China and their ongoing trade negotiations during his 19th week in office.

President Donald Trump accused China Friday of violating a preliminary trade agreement between the two countries and suggested the U.S. may respond. The announcement came after a 90-day suspension of tariffs was agreed upon in May to ease tensions,

The bad news is that China, perhaps not surprisingly to some, has totally violated its agreement with us," said Trump.

President Donald Trump said twice Friday that China had breached the terms of the bilateral trade agreement but offered scant details.

Trump's former ambassador to Vietnam highlighted the main reason China may hesitate to strike a trade deal with the U.S.

One official said that the president is unlikely to delay his initial 90-day pause on some of his highest rates.

Beijing has prioritized the return of talented Chinese studying overseas to help development in high-tech fields. But are Chinese students in the United States really a national security threat?

President Donald Trump has accused China of violating its preliminary trade agreement with the United States agreed on May 12.