Trump's 'over-the-top' tariffs will thrust the US back into an era of economic shocks, thank tank expert says

Scott Olson/Getty Images

• Trump has promised to implement tariffs on virtually all US trade, and use them to replace the income tax.
• But the US already has a history of implementing broad-sweeping tariffs, PIIE's Steven R. Weisman said.
• He said such policies have taken the US close to bankruptcy, and unleashed an era of economic shocks.

Donald...