Presidential hopeful Hilary Clinton is uncertain whether the Doha round should be revived. “I agree with Paul Samuelson, the very famous economist, who has recently spoken and written about how comparative advantage, as it is classically understood, may not be a good description of the 21st Century economy in which we find ourselves”, she reportedly said over the weekend. Invoking labour and environmental standards as well, she said her administration would review all US trade agreements, including NAFTA (signed by husband Bill, in 1993). Nobel Laureate Samuelson created a storm with his 2004 Journal of Economic Perspectives paper when he said that the growth of trade with the emerging economies (including China and India) could reduce US welfare. Jagdish Bhagwati has counter-attacked US protectionists who, he says, have hijacked Samuelson’s argument for their own ends, noting that Samuelson didn’t say the US should use protectionism to respond to the new giants’ rise. Good to see that US politicians take their economists seriously as the presidential race heats up.