On March 16, 2018, just twenty-six hours before his scheduled retirement from the organization he had served with distinction for more than two decades, Andrew G. McCabe was fired from his position as deputy director of the FBI.

President Donald Trump celebrated on Twitter: "Andrew McCabe FIRED, a great day for the hard working men and women of the FBI - A great day for Democracy." In The Threat: How the FBI Protects America in the Age of Terror and Trump, Andrew G. McCabe offers a dramatic and candid account of his career, and an impassioned defense of the FBI's agents, and of the institution's integrity and independence in protecting America and upholding our Constitution.

The Threat recounts in compelling detail the time between Donald Trump's November 2016 election and McCabe's firing, set against a page-turning narrative spanning two decades when the FBI's mission shifted to a new goal: preventing terrorist attacks on Americans.

But as McCabe shows, right now the greatest threat to the United States comes from within, as President Trump and his administration ignore the law, attack democratic institutions, degrade human rights, and undermine the U.S. Constitution that protects every citizen.