Jack: The Ambitious Betrayer in Hernán Díaz's Trust

Overview

Jack—originally named Giacomo before he reinvented himself—is a minor but pivotal character in Hernán Díaz's Trust. A childhood friend and former boyfriend of narrator Ida Partenza, Jack returns to New York from Chicago with dreams of becoming a star journalist. His arc traces a familiar pattern of masculine ambition curdling into resentment and ultimately betrayal. Jack attempts to blackmail Ida by stealing pages of the memoir she is ghostwriting for Andrew Bevel, a scheme that collapses when Ida confronts his intermediary and forces Jack to leave New York.

Jack functions as a mirror to several of the novel's other characters: his hunger for recognition echoes Bevel's obsessive control over his own narrative, while his willingness to exploit a woman's labour for his own gain mirrors the broader patterns of erasure that Ida herself experiences. Unlike Bevel, however, Jack lacks power and cunning; his scheme is small-time and easily dismantled.

Plot Role

Jack enters the story in Chapter 9 when Ida returns home to find him sharing beer and sandwiches with her father. He has transformed himself from the shy boy she knew into a journalist with a moustache, new vocabulary, and an eagerness to "leave his imprint" on the world. Throughout the middle sections of the novel, Jack serves as both a romantic interest and a source of domestic tension, but his primary plot function is that of antagonist: he follows Ida to Bevel's home, reads portions of the ghostwritten memoir, and attempts to sell the stolen pages to newspapers.

His plan fails when Ida—displaying the composure she has learned from Bevel—confronts the intermediary at a milkshake bar and threatens Jack with Bevel's retaliation. By Chapter 49, Ida's father casually reports that Jack has taken a job in Chicago, and Ida feels only relief.

Motivations and Traits Shown Through Actions

Insecurity masked as ambition

Jack's decision to change his name from Giacomo to Jack signals his desire to shed his immigrant identity and pursue an American success story. He speaks grandly of becoming a columnist, of finding the perfect article for the perfect editor at the perfect newspaper. Yet his actions betray deep insecurity: when Ida pays cash for her typewriter, the narrator notes his resentment, and when she offers him money on the walk home, he accepts it without meeting her eyes.

Resentment of Ida's success

Jack cannot tolerate Ida's professional advancement. When she announces her new job, his enthusiasm curdles when she postpones a celebratory dinner to read for her employer. His possessiveness emerges clearly when he interrogates her about working alone at Bevel's home, saying, "That doesn't please me." The theft of the memoir pages is the logical endpoint of this resentment: rather than building his own career, he tries to steal hers.

Grandiosity without substance

Jack's speeches are full of Hemingway and the International Brigades, but when Ida asks him to type an article for a contact at the Sun, he admits he needs her skill. The narrator describes his "grandiloquence" and "little-boy seriousness," noting the gap between his self-image and his actual capabilities.

Chronological Arc

1. Return: Jack reappears in Ida's life after two years at university in Chicago, renamed and remade as a journalist. They begin an informal romantic relationship.

2. Observation: He is captivated by Ida's father's stories of his anarchist past and offers to help publish them. This moment links Jack to the novel's broader theme of men seeking to control narratives.

3. Resentment: When Ida gets her job with Bevel, Jack's jealousy surfaces. He follows her to Bevel's home, reads portions of the memoir she is typing, and devises his blackmail scheme.

4. Betrayal: Jack sends an intermediary to demand the pages from Ida. The scheme is revealed when the intermediary, under pressure from Ida, names Jack as the instigator.

5. Exile: Ida threatens Jack through the intermediary, warning that Bevel will destroy him unless he leaves New York. Jack takes a job in Chicago, and Ida feels relieved.

Relationships

Jack and Ida

Their relationship is defined by imbalance. Ida initially hopes for love, but she increasingly sees through his pretensions. She notes that "my desire to be madly in love was stronger than what I felt for him." Jack, for his part, cannot accept Ida's independence or success. The relationship ends not with a confrontation but with Jack's silent departure, which Ida experiences as liberation.

Jack and Ida's Father

Jack is drawn to Ida's father's stories of anarchist heroism, seeing in them material for publication. The father, in turn, treats Jack as a captive audience for his tales. Their alliance momentarily excludes Ida, who observes their "little-boy seriousness" with embarrassment.

Jack and Andrew Bevel

Though they never meet, Jack's scheme is a direct attempt to exploit Bevel's vulnerability. The parallel is instructive: both men seek to control narratives—Bevel through wealth and intimidation, Jack through theft. Both fail to reckon with Ida's agency.

Key Decisions and Consequences

Theme and Symbol Connections

Narrative Unreliability and Truth

Jack's scheme depends on the assumption that there is a single, saleable truth about Bevel that can be stolen and sold. The novel suggests otherwise: the memoir Ida writes is itself a fabrication, and what Jack steals may be no more "true" than any other version of events.

For a deeper exploration of this theme, see Narrative Unreliability and Truth.

Gender and Authorship

Jack's attempt to profit from Ida's labour epitomises the novel's critique of how men appropriate women's work. Ida writes the memoir; Bevel claims authorship; Jack tries to sell the pages. At each step, her labour is erased or exploited.

For more on this dynamic, see Gender and Authorship.

Self-Interest vs. Common Good

Jack's scheme is nakedly self-interested, yet the novel implies he is merely an amateur version of Bevel—a man who also believes the world exists to serve his ambitions.

This theme is analysed further in Self-Interest vs. Common Good.

Memory and Legacy

Jack wants to commodify memory—both Bevel's (via the stolen memoir) and Ida's father's (via the proposed book of anarchist stories). He treats the past as raw material for career advancement.

For more on the novel's treatment of legacy, see Memory and Legacy.

5 Book-Specific Questions and Answers

1. Why does Jack change his name from Giacomo to Jack?

Jack anglicises his name as part of his reinvention from an immigrant neighbourhood boy into an American journalist. The narrator notes that when he returned from Chicago, "he was not the same" and had acquired a new wardrobe, a richer vocabulary, and the moustache that completes the persona. The name change signals his aspiration to leave behind his Italian-American identity and enter the mainstream press.

2. How does Ida discover that Jack stole the memoir pages?

Ida returns home after shopping to find that the discarded pages she had crumpled into her wastebasket have been replaced with blank sheets. She suppresses her terror during dinner and fights the urge to stare at Jack's bag. Later, during her confrontation with the intermediary at the milkshake bar, she offers ten dollars for the name of his employer, and the intermediary tells her: "Jack."

3. Why does Jack want to sell the memoir pages rather than use them himself?

Jack lacks access to Bevel's world and cannot directly exploit the information. He plans to sell the pages to a newspaper, hoping the scoop will "land a big position." The intermediary confirms that Jack wanted to sell to the highest bidder. His scheme is that of an outsider trying to buy his way into the insider circle.

4. What is the significance of Jack leaving for Chicago?

Chicago is where Jack originally went to university, and his return there suggests a cyclical pattern—he has failed to advance despite his grand ambitions. For Ida, his departure brings relief and marks her complete emotional detachment from him. She accepts the Manhattan apartment Bevel arranged immediately after hearing the news, symbolically choosing Bevel's world over Jack's.

5. How does Jack's character parallel Andrew Bevel?

Both men seek to control narratives and exploit Ida's labour. Bevel commissions the memoir and claims ownership of Mildred's story; Jack steals pages of that same memoir to sell for his own advancement. The difference is one of scale and power, not of ethics. Ida herself notices this parallel when she feels ashamed for comparing her father and Jack unfavourably to Bevel, realising that Bevel has convinced her of his superiority.

For a full analysis of the novel's ending, see Trust Ending Explained, and for broader thematic questions, visit the Questions and Answers section.