The behind-the-scenes story of the investigation that shook America to its core-the Mueller investigation that presented all the evidence of Russian interference in the 2016 presidential election-as told by Robert Mueller's closest colleagues, including never-before-revealed details into how the team investigated Putin's campaign to favor candidate Donald Trump and Trump's efforts to interfere in the investigation.

Fewer than four months into the Trump presidency, former FBI Director Robert S. Mueller, III, was called by the Department of Justice to serve as special counsel. Mueller's primary task: to investigate Russian interference in the 2016 election - an operation intended to make Donald Trump president - and any links this operation might have had to the Trump campaign. Mueller's other task: to determine whether the president himself had interfered in the investigation of Russia's actions.

Interference is the inside story of the Mueller investigation, told for the first time by Mueller's leadership team. It completes and corrects the historical record of the only federal criminal investigation of President Trump while he was in office.

The authors' account is a real-life thriller, placing the reader inside the room for the most consequential and difficult decisions of the special counsel's tumultuous two years. Their work culminated with the Mueller report, and now, with vivid detail and unwavering honesty, the authors offer a rare glimpse into the minds of those who stood at the forefront of that investigation. They describe the pressures and dilemmas they faced as the US' criminal justice system and their rule of law were put to the test.

American institutions are under strain like never before. The pressure to compromise on matters of principle has never been greater. Interference shows the importance of making principled decisions in unprincipled times. It is an urgent reminder of the challenges facing the United States, both then and now.