The president was serious again. Porter drafted a 180-day notification letter to be signed by Trump that the United States would withdraw from NAFTA. Porter was more and more convinced that it could trigger an economic and foreign relations crisis with Canada and Mexico. He went to see Cohn. “I can stop this,” Cohn said to Porter. “I’ll just take the paper off his desk before I leave.” And he later took it. “If he’s going to sign it, he’s going to need another piece of paper.”
