As a result of the changing class composition of the two parties, the older dichotomy of Democratic protectionism and Republican support for free trade has been reversed. According to the Pew Research Center, by a margin of 56 percent to 38 percent, Democratic voters believe that free trade agreements have been good for the US. Among Republicans, those numbers are flipped: by a 53 percent to 38 percent margin, a majority of Republicans believe free trade has been a bad thing.
