Kristi Noem Files for Divorce from Husband Bryon After Years of Marriage – What She Cited as the Reason

For months, her personal life has been surrounded by awkward revelations, public scrutiny, and questions about what was happening behind closed doors. Now, a new legal filing has put one chapter of that turmoil on paper, and the wording she chose is notably restrained.

After more than three decades together, Kristi Noem and her husband, Bryon Noem, are heading for divorce following a turbulent period in their personal lives. But amid months of headline-making revelations, the reason listed in the actual court filing is strikingly brief.

According to a September 29, 2026 report from the New York Post, the former South Dakota governor and Homeland Security secretary filed for divorce on Monday in Hamlin County Court in her home state. Kristi and Bryon have been married since 1992, making the filing the apparent end of a marriage spanning more than three decades.

The couple shares three adult children: daughters Kassidy Noem, 31, and Kennedy Noem, 29, and son Booker Noem, 23. Kassidy and Kennedy have also made Kristi and Bryon grandparents. Yet the divorce filing did not emerge in a vacuum.

Months of Intensely Personal Headlines Preceded the Filing

Earlier this year, Bryon became the subject of highly personal reports concerning his alleged interactions with adult models and his participation in an online fetish community. The controversy involved reports about Bryon's alleged cross-dressing as well as his purported communications with women associated with the so-called "bimbofication" scene.

The Post reported that the revelations surfaced in late March, days after Kristi had been removed from her position as the Department of Homeland Security (DHS) secretary by U.S. President Donald Trump. According to the report, the Daily Mail alleged that Bryon regularly communicated with women in the "bimbofication" fetish community, involving adult performers who pursue exaggerated, Barbie-like physical appearances.

Citing what it described as "hundreds" of messages sent to three models, the outlet reported that Bryon expressed an interest in "huge, huge ridiculous boobs." It further alleged that he shared an image of himself wearing pink hot pants and a flesh-colored, well-endowed bodysuit.

For Kristi and the rest of the family, the reports were apparently unexpected. A representative for Kristi told the Post at the time that she was "devastated" by what had emerged. "The family was blindsided by this, and they ask for privacy and prayers at the time," the representative said. The reporting about Bryon was not the only personal scrutiny surrounding the marriage.

Kristi Noem Also Faced Reports About Corey Lewandowski

Kristi has separately been the subject of reports concerning an alleged longtime relationship with former Trump Campaign Adviser Corey Lewandowski. Corey is married and has four children. Still, the Post later reported, citing sources, that Kristi and Corey had continued to pursue their relationship.

According to the outlet, the pair was spotted together along the shores of Lake Minnetonka in Minnesota in August. The Post described them as biking and "canoodling" during the outing.

The outlet has also reported that Kristi and Corey share political ambitions connected to a possible future presidential run, with sources claiming those plans stretch back to her tenure as governor of South Dakota.

Those claims remain attributed to the Post and its sources rather than being established by Kristi or Corey in the information provided. Meanwhile, both continued with their professional lives after leaving the Department of Homeland Security.

Kristi Moved Into a New Government Role

Following her departure from DHS, Kristi was appointed special envoy for the Shield of the Americas, a multinational State Department security and anti-cartel initiative. Her new position came with an office at the Donald J. Trump Institute of Peace, which the Post reported is located near the Lincoln Memorial and National Mall.

She also attended a meeting between Trump and South American leaders on the sidelines of the United Nations General Assembly during the week before her divorce filing. According to the Post, the president greeted her with a simple "hello."

Meanwhile, Corey returned to his government and public affairs firm, Lewandowski Strategic Advisors, following the end of his tenure as a special government employee. During his time at DHS, the Post said he effectively served as Kristi's de facto chief of staff.

All of that formed the complicated backdrop to a marriage that had lasted since the early 1990s — and to the paperwork Kristi ultimately submitted in South Dakota.

What Did Kristi Noem Cite as the Reason for the Divorce?

Despite the extraordinary amount of public attention surrounding both Kristi and Bryon's personal lives in recent months, the court filing itself gave a concise reason for ending the marriage. Kristi cited "irreconcilable differences" in filing for divorce from Bryon.

The supplied report does not say that the filing formally identified the allegations involving Bryon, the reports surrounding Kristi and Corey, or any particular episode as the legal cause of the divorce.

Still, the timing places the filing months after a remarkably public stretch for the couple, beginning with the reports about Bryon's alleged private activities and continuing amid scrutiny of Kristi's own personal life.

For Kristi Noem and Bryon, the filing now marks a major change after more than 30 years together, while the understated wording in the court papers stands in sharp contrast to the intensely personal headlines that came before it.

As we previously reported, the divorce did not come as a surprise to Kristi's inner circle — her own mother had revealed months earlier that her daughter told her she was planning to leave Bryon.

Kristi's Mother Says the Family Saw It Coming

The Daily Mail reported that Bryon had recently moved out of the couple's home in Castlewood, South Dakota, further marking what appears to be a major turning point for the family.

Amid the latest development concerning Kristi's recent filing, Kristi's 77-year-old mother, Corinne Arnold, had sat down for an interview with the Daily Mail and said the family had been expecting this outcome.

According to Corinne, the situation had been painful but not entirely surprising. "It has been difficult, but we knew this was coming, that they were going to get divorced," Corinne said.

She also recalled the last time she saw Kristi and Bryon together, at a family gathering in late spring to celebrate one of her grandchildren's birthdays. Corinne described the birthday party as a gathering where the entire family was present. "This was a big party where the whole family was there, Kristi and Bryon, all my kids, all my grandkids," she recalled.

Despite everything that had reportedly unfolded in the months before, she said Bryon appeared affectionate with the children. "Bryon was holding and hugging the kids," she said. "It seemed like the old Bryon."

She added, "He was very nice. I hugged him, told him I loved him, and he said the same." At that point, however, one question had been weighing on her mind.

The Conversation That Reportedly Confirmed Everything

During the family gathering, Corinne said she finally decided to ask her daughter directly about the future of her marriage. According to her, Kristi had generally kept her feelings to herself. "She doesn't tell me what she thinks," Corinne said.

But she said she eventually asked the question that had been lingering. "Finally, I said: 'What's the deal? Are you going to get together again?'"

Corinne then recounted Kristi's alleged response. "And she said, 'No. No. We're going to get a divorce.'" She said she immediately followed up with another question. "And I said: 'Who is your lawyer?' And she said it was somebody from Sioux Falls."