The Trump family's cryptocurrency venture World Liberty Financial filed a defamation lawsuit Monday against Chinese-born billionaire Justin Sun, escalating a bitter dispute that began when the company froze Sun's assets over alleged misconduct, and Sun responded with what the firm calls a coordinated public campaign to damage its reputation.
The lawsuit, first detailed by the Daily Mail, marks the second round of legal action between the two sides in less than a month. Sun filed his own suit roughly two weeks ago, accusing World Liberty Financial of "engaging in an illegal scheme to seize property." Now the company, co-founded by Donald Trump Jr., Eric Trump, Barron Trump, and brothers Alex and Zach Witkoff, has punched back with a claim that Sun waged a "public smear campaign" after getting caught violating his investor agreement.
Sun wasted no time responding. He called the defamation filing "nothing more than a meritless PR stunt" and said he looks forward to defeating the case in court.
World Liberty Financial's complaint paints a picture of an investor who turned hostile after the company discovered problems with his conduct. The firm says it froze Sun's assets after learning of "misconduct" that included "suspected short selling" of the company's tokens and "straw purchases of $WLFI tokens on behalf of undisclosed third parties."
Short selling, betting that an asset's price will fall, by a major investor in the very company he publicly championed would represent a serious breach of trust. Straw purchases, where tokens are bought on behalf of hidden parties, raise their own red flags about who actually controls what.
Rather than work toward a resolution, the lawsuit claims, Sun "embarked on a scorched-earth pressure campaign." His counsel allegedly threatened a lawsuit that would "light World Liberty on fire" and make the company's token price "go to s***." When the company didn't cave, Sun allegedly took his grievances public with what the filing calls "false claims" broadcast to millions of social media followers.
Tom Clare, the attorney representing World Liberty Financial, framed the suit in blunt terms:
"Rather than acting in good faith, Justin Sun chose to defame World Liberty, repeatedly, publicly, and to millions of followers."
Clare, who has represented high-profile clients including Johnny Depp and Brigitte Macron in defamation matters, described the lawsuit as a "last resort to correct the record." He added: "We are eager to expose the falsity of Sun's statements in court and in public."
The Trump brothers and the Witkoff family have lined up firmly behind the legal action. Newsmax reported that Donald Trump Jr. reposted World Liberty's thread on X and wrote: "Read this entire thread for the truth!!!!" Zach Witkoff, the company's chief executive, posted his own statement: "I look forward to the truth coming out in court."
The family's willingness to engage in public legal combat is consistent with how Trumps have handled perceived attacks in other arenas. When late-night host Jimmy Kimmel directed remarks at the family, Melania Trump called on ABC to act, demonstrating the family's pattern of responding forcefully to what it views as unfair public targeting.
Fox News reported that the firm's legal team accused Sun of shorting its token and then launching the smear campaign when his assets were frozen, a sequence that, if proved, would suggest Sun tried to profit from the very damage he allegedly inflicted.
The New York Post reported that the defamation suit was filed in Miami-Dade County state court, and that World Liberty claims at least one business deal collapsed as a direct result of Sun's public attacks. Eric Hageman, another attorney for the firm, told the Post that Sun threatened to "light World Liberty on fire" and cause the token price to crater when the company refused to release his frozen holdings.
The speed of Sun's transformation from enthusiastic backer to hostile litigant is striking. The founder of Tron and CEO of BitTorrent invested heavily in Trump-backed cryptocurrency projects after the 2024 election. He purchased $100 million worth of the $TRUMP meme coin last May and bought $75 million in digital coins from World Liberty Financial, a purchase that Forbes estimated netted the Trump family roughly $400 million in profits.
Sun attended a dinner with President Trump and 220 of the largest holders of the $TRUMP meme coin at the President's golf course. He styled himself the President's "top fan."
Last September, Sun posted on X with what sounded like deep conviction: "I truly believe this will be one of the biggest and most important projects in crypto." He added: "The long-term vision here is too powerful, and I'm fully aligned with the mission."
Months later, he was suing the company and, by World Liberty's account, trying to burn it down.
One unnamed cryptocurrency insider questioned the timeline of Sun's change of heart. "I don't feel bad for him," the insider told the Daily Mail. A second insider pointed to Sun playing the "victim" and noted: "Nobody has more experience fighting high-profile lawsuits than the Trump family."
Sun's legal history adds context to the dispute. In 2023, the SEC accused him in a civil case of manipulating the secondary market for his own crypto assets through wash trading, a practice where an investor simultaneously buys and sells the same asset to create the illusion of market activity.
That case ended in March 2026, when the SEC dropped it in exchange for a $10 million penalty paid by one of Sun's companies. Sun did not admit wrongdoing in the settlement.
Sun has a well-documented taste for spectacle. He won lunch with Warren Buffett in 2019 after paying $4.57 million at a charity auction. He went to space aboard Jeff Bezos's Blue Origin flight last year after bidding $28 million. He purchased a banana duct-taped to a wall, an art display, for $6.2 million. He publicly offered to spend $30 million for an hour with Elon Musk. Musk did not respond.
A Trump ally told Breitbart: "Justin is a billionaire who had to pay the SEC $10 million in fines. Apparently he was shorting WLFI stock and making straw purchases, and when he got caught, he decided to wage lawfare against the Trump family."
The lawsuit arrives at a moment when the Trump family's crypto interests face scrutiny beyond the courtroom. If House Democrats win a majority in November, they are expected to launch investigations into the family's cryptocurrency ventures, a prospect that adds political weight to how this dispute plays out publicly.
One Democratic strategist assessed the landscape bluntly: "If you're the Trumps, you are deeply unpopular, and losing allies every day." The strategist added: "The question will be whether Sun has anything in his closet that he doesn't want to get out there."
That framing, of course, assumes the Trumps are on defense. The lawsuit filing tells a different story, one in which a billionaire investor allegedly violated his agreement, got caught, and then tried to use his massive social media platform to pressure the company into submission. The Trump family, whatever one thinks of its crypto ventures, is not rolling over. As recent confrontations have shown, this is a family that demands consequences when it believes it has been wronged.
Several key questions remain unanswered. What specific social media statements does World Liberty consider defamatory? What exactly were the frozen assets? What relief or damages is the company seeking? Neither side has laid all its cards on the table.
The case also highlights a broader tension in the crypto world: the gap between public enthusiasm and private conduct. Sun's glowing posts from last September, praising the "long-term vision" and declaring himself "fully aligned with the mission", read very differently now, set against allegations that he was simultaneously shorting the token he championed and making straw purchases through undisclosed parties.
The Trump family has faced no shortage of adversaries willing to wage public campaigns against them. In this case, they've chosen to meet the fight in court rather than absorb the damage, hiring a top defamation attorney and putting the company's version of events on the record.
Sun, for his part, insists the lawsuit is a stunt. Courts will sort out the facts. But when a billionaire investor publicly praises a project one month and allegedly tries to detonate it the next, the timeline speaks louder than any press release.
In crypto, as in politics, the loudest cheerleader sometimes turns out to be the one betting against you behind closed doors. If World Liberty Financial's allegations hold up, Sun's story won't be about defamation law, it will be about what happens when loyalty is just another trade.
