P.M. Edition for Oct. 10. President Trump responded to recent Chinese actions targeting the U.S. by threatening higher tariffs and export controls on China—a move that sent U.S. markets falling. WSJ reporter Jack Pitcher explains the market reaction. Plus, the White House said today that it has begun mass layoffs of federal workers as a result of the government shutdown. And MIT has become the first university to reject a compact sent by the Trump administration last week offering colleges funding advantages. We hear from WSJ reporter Doug Belkin about why the university rejected it, and what it means for other universities faced with a similar proposal. Alex Ossola hosts.

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