Professor of Economics Richard Grossman tells his students that getting closer to the truth is what economic research is all about. That's why he was so dismayed when "my devotion to, and belief in, the truth was battered by the presidential election," he writes in an op-ed on The Hill. He writes: It turns out that polling data and analysis contained very little truth. The news were no better. The mainstream media got many things wrong. And there was no shortage of fake news. Although peddled as the real thing, it really wasn’t even trying to provide truth, only to shape opinion.…