Democratic operative Tara McGowan is denying that her high-profile liberal firm ACRONYM played a role in the Monday evening caucus debacle, claiming that her firm was merely an investor in the company Shadow Inc., which developed the app at the center of the controversy. But internal company documents, a source close to the firms, and public records show a close and intertwined relationship between Acronym and Shadow. In addition, ahead of the caucuses, questions swirled inside Shadow over the company’s ability to deliver a quality product, and there was concern from at least one staff member that senior leaders of...