Over August recess, a conservative dark-money group with a history of ties to the brand-drug lobby has begun running ads opposing an upcoming government price negotiation bill from House Speaker Nancy Pelosi (D-CA). The American Action Network does not have to disclose its donors in real time, but regulatory filings show the Pharmaceutical Research and Manufacturers of America funneled several million dollars through the group in 2016 and 2017. The American Action Network has blanketed radio airwaves across the country...