Investigators used a drone over the Potomac River to survey the wreckage from the midair collision near DC airport.
Mexico, Canada and China account for more than 40 percent of total goods traded with the United States.
Hadi Matar accused of attempted murder after repeatedly stabbing the author on stage in 2022 in the United States.
China is quick to act when US tariffs on its imports go into effect, but experts say it's leaving room for negotiation.