New York magazine writer Olivia Nuzzi is publicly accusing her ex-fiancé Ryan Lizza, a prominent political journalist with Politico, of orchestrating a harassment and blackmail campaign against her after their split and while Nuzzi had a personal relationship with Robert F. Kennedy, Jr.

The accusations — which Nuzzi made in a filing and before a judge in Washington, DC’s Superior Court this week and which he denies — are the latest explosive twist to emerge from the fallout of her previously undisclosed relationship with Kennedy, the former independent presidential candidate, and as the national political press has turned the saga into a discussion of journalism ethics.