It's been argued to me that the Reagan Zone of Economic Freedom isn't even the dumbest Reagan-related slide in that Romney slide show. Here we have a chart of the historical determinants of economic progress in America. There turn out to have been only three of them -- the Smoot-Hawley Tariff, the GATT agreement, and the election of Ronald Reagan.

There's so much wrong with this chart that I hardly know where to begin, but for starters though Smoot-Hawley was surely a mistake are we really supposed to believe it was the sole cause of the Great Depression?

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