Trump's tariffs are 'biggest policy mistake in 95 years,' Wharton's Jeremy Siegel says

President Donald Trump 's recent sweeping tariffs policy could be a worse move for the U.S. than the Smoot-Hawley Tariff Act of 1930 , according to Jeremy Siegel, professor at the University of Pennsylvania's Wharton School. "I think this is the biggest policy mistake in 95 years," Siegel said…