What’s it like behind the scenes at MSNBC? Ratings and politics were at the core of every editorial decision, according to one former producer, forcing “skilled journalists to make bad decisions on a daily basis.” In a letter about her July 24 departure from MSNBC, Ariana Pekary explains why she left. “It’s possible that I’m more sensitive to the editorial process due to my background in public radio, where no decision I ever witnessed was predicated on how a topic or guest would 'rate.' The longer I was at MSNBC, the more I saw such choices — it’s practically baked...