Investors are now wondering if the worst of the selloff is over or whether a global trade war is just beginning. 💵💰Don't miss the move: Subscribe to TheStreet's free daily newsletter 💰💵 Higher tariffs mean companies will pay more for imported goods,

The U.S. should delay implementing its new tariffs for up to 90 days while trade negotiations take place, billionaire investor Bill Ackman, who endorsed Donald Trump's run for president, said in a social media post on Tuesday.

The Tesla mogul said Trump's trade advisor Peter Navarro is "truly a moron," while the Barstool exec outlined impact if the "economy tanks."