Trump wants to restrict trade and immigration. Here’s why he can’t do both.

Recently, trade negotiators from the United States, Canada and Mexico concluded the first round of talks to renegotiate the North American Free Trade Agreement. President Trump has made clear that he wants a deal that cuts the U.S. trade deficit — and brings manufacturing jobs back to the United States. Trump also threatened to withdraw from the South Korea-U.S. free-trade agreement (KORUS), citing unfair trade practices and a desire to bring home U.S. jobs.

At the same time, Trump is supporting the Reforming American Immigration for a Strong Economy Act (Raise Act), which would cut legal immigration by 50 percent. And he announced the end of the Deferred Action for Childhood Arrivals program, which could mean the deportation of about 690,000 “dreamers” — immigrants who came into the country illegally as children.