March’s stock market selloff showed no signs of easing Thursday as major indexes closed at their lowest points of the year, sending the S&P 500 into a correction amid intensifying backlash to President Donald Trump’s sweeping tariffs,

Second, the U.S. stock market recovered remarkably quickly from the tariffs imposed during the first Trump administration. Specifically, while the S&P 500 declined 19.8% over a three-month period between September and December 2018, the index had already recouped its losses and reached a new high by May 2019.

Suspicion is rising that Trump and his aides are manipulating stocks via tariff announcements. Is that even possible?