Robert Zoellick, U.S. Trade Representative under President George W. Bush, wrote a scathing appraisal of President Trump's trade policy in the Wall Street Journal Tuesday, urging Congress to block what he called Trump's “crack-up.” First up in Zoellick's attack: Trump's threats to abandon KORUS. “The immediate result would be to increase barriers to American exporters, especially farmers, ranchers, manufacturers and service industries,” he wrote in his op-ed . “Without the FTA, Korea’s average tariff could be boosted to almost 14%,...