Every few years a debate re-emerges on the internet as to whether university faculty have truly shifted to the left, and if so, whether it matters. The debate has just flared up because of a graph that I made after some discussions about ideology in the academy with my friend Jon Haidt, who wanted to document the trend here at Heterodox Academy. The graph (Figure 1) got picked up and debated at a number of websites, including The American Interest, The American Conservative, Mother Jones, and Bloomberg.