An uncomfortable truth for American economists is that they have limited influence on economic policy. Take trade, for example. Anyone who has studied introductory economics knows that free trade benefits countries in the long run, by allowing them to specialize in producing the goods and services in which they have a comparative advantage. Economists are in near-universal agreement about this point, although most also agree that it is important to help workers who lose their jobs in the short run because of trade. Yet free trade has never been very popular in Washington.
Dynan, Karen. "The Unheard Nerds: How Economists Can Talk So Policymakers Will Listen." Foreign Affairs. November/December 2018.