Cambridge Analytica LLC, the American arm of the London-based data analytics firm of the same name, filed for bankruptcy in federal court in New York on Friday. The company submitted a voluntary formal petition for Chapter 7 bankruptcy—liquidation. That document reveals the company has between $1 and $10 million in debt with very little assets. On May 2, SCL Elections Ltd. and its other British affiliates filed similar "insolvency" documents with UK authorities. It was revealed last month t...