‘My Bad’: Bill Ackman Lays Bare Wall Street’s Big Fail on Trump (2)

“My bad.”

It was nearly 9 p.m. and Bill Ackman, public face of the billionaire class that embraced Donald Trump, was tweeting his way into the eye of the financial storm.

World markets were reeling because Trump, to the smart money’s apparent surprise, was following through on his oft-repeated threats to impose punishing tariffs.

Only months ago, Ackman celebrated Trump’s victory, predicting “the most pro-growth, pro-business, pro-American” administration he’d seen in his adult life.

Now, on a Sunday night — after nearly $6 trillion had been wiped out in an epic two-day market rout, with more pain to come ...