Kai Trump is facing a legal challenge over his trademark application for “KAI” on clothing.
Kai Trump is President Donald Trump’s eldest grandchild and is already following in his footsteps in his love of golf and commitment to his name as a brand.
On July 22, UK-based clothing company Kai Collective filed a “notice of opposition” with the U.S. Patent and Trademark Office, alleging that it has been selling clothing under the “KAI” brand since April 2021.
Kai Trump had applied for a trademark before the organization filed one in February, the latter of which was on hold until the opposition was resolved. but tanning ipfounder Josh Gerben first wrote about the challenge in a July 23 blog post, saying that clothing brands may be able to claim trademark rights even if they first sold clothing under the “KAI” brand. USA TODAY reached out to representatives for Kai Collective and Kai Trump, but did not immediately receive a response. “So[Kai Collective]has to go through a process to prove that it has, in fact, been actively and continuously selling in the U.S. for the past five years…If they can prove that, they have a pretty strong case to prevent the clothing from being registered,” Gerben told USA TODAY.
“[Kai Trump]is doing the right thing,” Gerben said of the young influencer’s move to apply for a trademark. “She really took a step back from her family plans here.”
What is Kai Trump’s trademark?
Kai Trump’s trademark application, filed on October 7, 2025, was for “KAI,” which covers clothing, entertainment, and education. The objection filed by Kai Collective applies only to the clothing aspect of her application.
President Trump unveiled a clothing collection in September, starting with sweatshirts emblazoned with his initials. The brand’s website now states that pre-orders have ended and orders are being filled by a US company.
Trump is also a social media personality, with more than 8 million followers and subscribers across Instagram, TikTok and YouTube. She is focusing on golf content with the aim of becoming a golf professional.
Mr. Trump’s team, which is represented by the same lawyers filing the Trump Organization’s trademark application, has until September 20 to file a response to the “notice of opposition,” Mr. Gerben said. Gerben also wrote that these trademark cases are often settled to avoid lengthy litigation.
What is the relationship between Kai Trump and Donald Trump?
Kai Trump, 19, is the eldest daughter of President Donald Trump and the daughter of Donald Trump Jr. and ex-wife Vanessa Trump. (Trump Jr. is currently married to Bettina Trump, a socialite from the Palm Beach area. Vanessa Trump is dating golf legend Tiger Woods.) Kai Trump recently graduated from Benjamin School in the Palm Beach, Florida area and plans to play golf in college at the University of Miami.
In February 2025, Kai Trump became the highest-paid player in high school girls golf after announcing her first major sponsorship deal with major golf equipment company TaylorMade.
She may share her grandfather’s love of golf, but she told the ESPYs, “I want nothing to do with politics at all. It’s not (her) hobby.”
Contributor: Jennifer Sangalan, Michelle Del Rey, USA TODAY Network
Kinsey Crowley is a Trump Connect reporter for the USA TODAY Network. Please contact KCrowley@usatodayco.com. follow her X (Twitter), thread, blue sky and TikTok.

