When Donald Trump announced in early March 2026 that Oklahoma Senator Markwayne Mullin would replace Kristi Noem as the United States Secretary of Homeland Security, the national spotlight immediately shifted toward the conservative lawmaker. Known for his “MAGA Warrior” persona and an undefeated past in mixed martial arts, Markwayne has built a reputation as a tough, unapologetic figure. Yet, behind his ascent from the plumbing business to the United States Senate—and now to a top Cabinet position—stands a woman whose own resume is equally formidable.
Christie Mullin is far more than a politician’s spouse. A lifelong Oklahoman, a second-degree black belt in karate, an accomplished entrepreneur, and a mother of six, she has been the foundational anchor for the Mullin family for nearly three decades. As Markwayne prepares to take on one of the most demanding roles in the federal government this year, Christie is stepping further into the public eye, carrying her own impressive portfolio of rural policy work and community leadership.
Early Beginnings and Building an Empire
The story of the Mullins is deeply rooted in eastern Oklahoma. Christie and Markwayne were high school sweethearts who found their lives turned upside down at just twenty years old. While Markwayne was attending Missouri Valley College on a wrestling scholarship, his father fell seriously ill. Without hesitation, the young couple postponed their education and returned home to Westville to save the struggling family business, Mullin Plumbing.
Taking over a company with only a handful of employees and substantial debt was a massive undertaking for the newlyweds, who married in 1997. Christie worked seven days a week alongside her husband, managing the books and navigating the complex realities of keeping a small business afloat. Their relentless drive paid off. Over the years, they grew Mullin Plumbing from four employees to a regional powerhouse with a workforce of over three hundred.
But plumbing was just the beginning. The couple leveraged their success to launch an array of other ventures. Today, their portfolio includes Mullin Environmental, Mullin Properties, and a working cow-calf operation known as Mullin Ranch. They even ventured into the restaurant industry by opening Rowan’s Steakhouse in a neighboring town. Through every expansion, Christie was heavily involved, providing the sharp business acumen needed to turn local startups into lasting successes.
Carving Her Own Path in 2026
While her husband navigated the rough-and-tumble world of Washington politics—first serving a decade in the House of Representatives before moving to the Senate in 2023—Christie carved out her own professional lane. Recently, she has taken her advocacy for rural communities to a national level. In 2025, she was appointed as the Chair of Rural Policy for the America First Policy Institute, a role she continues to hold and expand upon in 2026. In this capacity, she focuses on the unique economic and social challenges facing heartland communities, drawing directly from her life as an Oklahoma rancher.
Outside the boardroom and the policy arena, Christie is known for her fierce commitment to local empowerment. She holds a second-degree black belt in karate and frequently teaches self-defense classes for young women. Her community involvement also spans coaching girls’ gymnastics and serving as a youth ministry sponsor at the Coweta Assembly of God Church. Whether she is analyzing agricultural policy or demonstrating martial arts techniques, she brings a dynamic intensity to everything she touches.
A Growing Family and the Power of Adoption
Despite her numerous professional and civic achievements, Christie routinely emphasizes that her greatest source of pride is her family. She and Markwayne share six children: Jim, Jayce, Andrew, Larra, Ivy, and Lynette.
The story of how their family expanded is a testament to Christie’s deep sense of compassion. Several years ago, while already managing a chaotic household with three young children and her husband’s demanding political career, Christie discovered that two young twin girls in her extended family were living separately with elderly relatives. The girls, Ivy and Lynette, were receiving care, but Christie felt a strong conviction that they needed to be raised together in a traditional home environment.
Though Markwayne was initially hesitant about the massive life change during his transition to Washington, Christie and their older children were completely on board. The family formally adopted the twins, instantly turning a family of five into a bustling household of seven. The adoption process cemented the family’s bond, and the Mullins have frequently spoken about how the experience brought them immeasurable joy.
Navigating the 2026 Spotlight
As 2026 unfolds, Christie and her husband are adjusting to a new level of national attention. In late January, the couple was spotted attending the world premiere of Amazon MGM’s “Melania” at the Trump-Kennedy Center, a clear signal of their deep ties to the Trump inner circle. By March, with Markwayne’s nomination to lead the Department of Homeland Security making headlines across the globe, the couple is preparing for a major transition.
Taking the helm of DHS means Markwayne will be responsible for enforcing strict border security measures, overseeing complex immigration policies, and managing a massive federal agency. It is a high-pressure environment that will undoubtedly place immense scrutiny on the entire family. Yet, anyone familiar with Christie Mullin knows she is well-equipped to handle the heat.
From pulling a small plumbing business out of debt to raising six children while championing rural America, Christie has spent her life tackling challenges head-on. As she supports her husband’s shift from the Senate floor to the presidential cabinet, she continues to stand out as a powerful, multifaceted leader in her own right. The political world might just be getting to know her, but Christie Mullin has been shaping her community and driving her family’s success for decades.