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New Roy Cohn Biography Details Influence on Donald Trump's Legal Tactics

A new biography by Kai Bird examines the relationship between Roy Cohn and Donald Trump, detailing the legal and personal tactics Trump adopted from the lawyer.

Published September 17, 2026 at 11:21 PM EDT

The short answer

A new biography by Kai Bird examines the relationship between Roy Cohn and Donald Trump, detailing the legal and personal tactics Trump adopted from the lawyer.

New Roy Cohn Biography Details Influence on Donald Trump's Legal Tactics

The Facts

Who
Author Kai Bird, Roy Cohn, and Donald Trump.
What
Publication of Roy Cohn biography "American Scoundrel" by Kai Bird.
When
September 2026
Where
United States
Why
The book documents the origin of specific legal strategies—such as persistent denial and delay—that transitioned from Roy Cohn to Donald Trump.

Author Kai Bird has released a new biography titled "American Scoundrel," which examines the career of lawyer Roy Cohn and his influence on Donald Trump. The book details how Cohn served as a mentor to Trump during the latter's early years as a real estate developer. According to Bird, Trump adopted several of Cohn’s strategies, including denying allegations, delaying legal proceedings, and utilizing countersuits.

Cohn rose to national prominence in the 1950s as legal counsel for Senator Joe McCarthy’s subcommittee, which investigated alleged communists and gay people in the federal government. Bird notes that Cohn, despite being a closeted gay man, interrogated civil servants about their sexual orientation, leading to dismissals. Following his time in Washington, Cohn established a law practice in New York, where he represented leaders of crime families and high-profile figures.

The biography details Cohn’s history of legal challenges and financial practices. He was indicted three times by the Justice Department for bribery, perjury, and extortion, though he was acquitted in each instance. Bird reports that Cohn frequently avoided paying bills for services like dry cleaning and limousines by using delay tactics in small claims court. In 1986, Cohn was disbarred following accusations of bribery and fraud, just weeks before his death.

The scale of Cohn’s influence is framed by his participation in the McCarthy hearings, which the source says ruined the careers of hundreds or thousands of people. The book describes how Cohn practiced law over the phone and avoided leaving a paper trail to prevent the creation of evidence, a trait Bird observes in Trump’s preference for verbal communication.

The publication of "American Scoundrel" adds material to the public record. While Cohn died in 1986, the strategies described in the biography continue to be cited in discussions regarding contemporary legal and political maneuvers. Bird confirms that during four brief interviews for the book, Trump spoke effusively of Cohn, describing him as a "wonderful man" and a "great lawyer."

Timeline of what happened

Key dates and decisions, in the order they occurred.

  1. January 1, 1953

    Roy Cohn hired as counsel for Sen. Joe McCarthy’s subcommittee.

  2. January 1, 1986

    Roy Cohn disbarred following accusations of bribery and fraud.

  3. January 1, 1986

    Roy Cohn dies of complications from AIDS.

Summaries are written by The Plain Record to state the facts of a story plainly and without political slant. Drafted with AI assistance and checked against the source record before publication. See how we report, or report a correction.

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Questions readers ask

What happened: New Roy Cohn Biography Details Influence on Donald Trump's Legal Tactics?

Author Kai Bird has released a new biography titled "American Scoundrel," which examines the career of lawyer Roy Cohn and his influence on Donald Trump. The book details how Cohn served as a mentor to Trump during the latter's early years as a real estate developer.

Who is involved?

Author Kai Bird, Roy Cohn, and Donald Trump.

When did this happen?

September 2026

Where did this happen?

United States

Why does this matter?

The book documents the origin of specific legal strategies—such as persistent denial and delay—that transitioned from Roy Cohn to Donald Trump.