Economist Paul Krugman just made clear that Americans should not trust 2024 Republican vice presidential nominee Senator J.D. Vance (R-OH). In an op-ed published by the New York Times Thursday, Krugman emphasizes that while “Trump and Vance have a lot” of similarities, one thing they have “in common” is that “they’re both con men who despise their most avid supporters.” According to Krugman, the Ohio senator “talks a lot about his hardscrabble roots. But people should read what he wrote in “Hillbilly Elegy,” which shows startling contempt for the people he grew up with but who, unlike him, did…