Economist flags Trump's one-day flip flop after having 'months to prepare' his next move

Donald Trump had "literally months to prepare" a response but still fumbled it, changing his mind after one day, according to an economist on Saturday.

The Supreme Court smacked down Trump's tariff policies in a stunning rebuke from the most conservative high court in modern history, and Trump responded by waffling his new plan, according to noted economist Justin Wolfers.

In response to the decision, Trump first said he had enacted a 10% global tariff by executive order. Then on Saturday...