Clyde Prestowitz has written about why the Trans-Pacific Partnership was a mistake.
President Trump’s formal withdrawal of the United States from the Trans-Pacific Partnership (TPP) negotiations has precipitated a flood of tears about and warnings of the end of free trade and rising Chinese hegemony from orthodox economists and pundits. But there is no cause for tears or grounds for fear. The TPP was a mistake. There was never anything there. Although advertised as trans-Pacific, about 500 million of the 750 million people living in countries to be covered by the deal were in the Americas — Canada, the United States, Mexico, Peru, and Chile — and were already party to interlocking free trade agreements. [HBR.org]