Gary Cohn is still no fan of President Trump’s tariff plans. A few months removed from his position as director of the National Economic Council, the former Goldman Sachs COO can speak as freely as he wants about the potential dangers of Trump’s new trade policies.

In a Washington Post interview on Thursday, Cohn expressed his concerns: “I’ve always been worried that trade can have a derailing effect on the U.S. economy. If you start putting tariffs on products that consumers buy, they’re going to buy less products.” Cohn, who announced his resignation as Trump’s chief economic adviser in March, often butted heads with the president on trade policy.