U.S. President Donald Trump will speak with Chinese President Xi Jinping as soon as this week, Trump's spokesperson said, setting up a major diplomatic exchange as the world's two largest economies seek a deal that could avert a broader trade war.

NEW YORK — The marathon Q&A sessions are back, along with the cream Oval Office rug and the Diet Coke button on the Resolute Desk. So, too, are the late-night social media posts that ricochet across the globe and the barrage of executive orders.

The White House said on Monday it has noticed that Mexico is "serious" about President Donald Trump's executive order on tariffs, but Canada has "misunderstood" it to be a trade war between the neighboring countries.