Ian Shepherdson, Pantheon Macroeconomics Chief Economist, says uncertainty about the tariff war is proving to be painful. Lisa Shalett, Morgan Stanley Wealth Management Head of Investment and Portfolio Strategies, advises her clients to have the maximum level of diversification in equity markets. Paul Sankey, Mizuho Oil Analyst and Managing Director, observes the global economy is stronger than people appreciate. And Brad DeLong, UC Berkeley Professor of Economics, says the 21st century won't be an American century if President Trump's trade and immigration policies continue.