A new book casts a spotlight on Fusion GPS’s work for a Russian intelligence-linked lawyer while the firm hired a British ex-spy to author his now-notorious dossier in 2016.

Spooked: The Trump Dossier, Black Cube, and the Rise of Private Spies was written by Barry Meier, a former New York Times reporter. The book details the connections between former MI6 officer Christopher Steele, then-Hillary Clinton campaign-funded Fusion, and Russian lawyer Natalia Veselnitskaya, whom the Senate Intelligence Committee concluded was connected to Russian intelligence as she sought to undermine the Magnitsky Act and whom the Justice Department accused of obstructing justice in a case in which she was assisted by Fusion founder Glenn Simpson.