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Ranking Member Cassidy, GOP Colleagues to NCAA: Keep Biological Men Out of Women’s Sports


WASHINGTON – U.S. Senators Bill Cassidy, M.D. (R-LA), ranking member of the Senate Health, Education, Labor, and Pensions (HELP) Committee, Marsha Blackburn (R-TN), and 21 other Republican senators urged National Collegiate Athletic Association (NCAA) President Charlie Baker to update its student-athlete policy to ensure only biologically female students can compete in women’s sports. 

“The science is clear. Males have inherent athletic advantages over females due to their anatomy and biology...To allow biological men to compete in women’s sports, while considering testosterone a performance enhancer, is intellectually dishonest. These facts cannot continue to be ignored by the NCAA,” wrote the senators.  

“Amid the Biden-Harris administration’s unprecedented assault on Title IX, we write to urge the National Collegiate Athletic Association (NCAA) to update your student-athlete participation policy to require that only biologically female students participate in women’s sports,” continued the senators. “Several organizations—including the National Association of Intercollegiate Athletics (NAIA) and the Court of Arbitration for Sport—in addition to more than 20 states, have acted recently to protect women’s sports. We urge the NCAA to follow suit and take similar action to promote fair play.” 

Cassidy and Blackburn are joined by U.S. Senators Tommy Tuberville (R-AL), Katie Britt (R-AL), Joni Ernst (R-IA), Cindy Hyde-Smith (R-MS), Cynthia Lummis (R-WY), James Lankford (R-OK), John Thune (R-SD), James Risch (R-ID), Steve Daines (R-MT), Roger Wicker (R-MS), Kevin Cramer (R-ND), Josh Hawley (R-MO), Ted Cruz (R-TX), Pete Ricketts (R-NE), Ted Budd (R-NC), Marco Rubio (R-FL), Mike Crapo (R-ID), Mike Braun (R-IN), Thom Tillis (R-NC), Roger Marshall (R-KS), and Rick Scott (R-FL) 

This letter is endorsed by Riley Gaines, Concerned Women for America, Heritage Action, the Ethics and Religious Liberty Commission, Independent Women's Forum, the Independent Council on Women’s Sports, the Independent Women's Law Center, Champion Women, and the Our Bodies, Our Sports Coalition. 

Cassidy has launched an investigation to better understand the impact of allowing biological men to compete against female athletes in competition. Previously, Cassidy released a preliminary report detailing powerful testimony from female athletes who experienced unfairness, anguish, and mental stress arising from competing against biological male athletes who have an inherent physical advantage.        

Read the full letter here or below.  

Dear President Baker: 

Amid the Biden—Harris administration’s unprecedented assault on Title IX, we write to urge the National Collegiate Athletic Association (NCAA) to update your student-athlete participation policy to require that only biologically female students participate in women’s sports. The 2024 Summer Olympics are upon us, and the NCAA has boasted about its athletes’ participation.1 Yet the NCAA has still taken no steps to protecting a critical portion of these athletes. Several organizations—including the National Association of Intercollegiate Athletics (NAIA) and the Court of Arbitration for Sport—in addition to more than 20 states, have acted recently to protect women’s sports. We urge the NCAA to follow suit and take similar action to promote fair play. 

The science is clear. Males have inherent athletic advantages over females due to their anatomy and biology—including through having larger hearts, higher red blood count, greater lung capacity, longer endurance, larger muscle mass, differences in bone density and geometry, and lower body fat. Consistently, when adult males’ athletic performance is contrasted with adult females’ athletic performance in sports relying on endurance, muscle strength, speed, and power, males dominate, outperforming females by 10 to 30 percent.2 

Notably, similar trends are seen among trans-identifying athletes undergoing treatment, such as hormone therapy. When examining the effects of hormone therapy, studies show that muscular strength of men can be well preserved, even after three years on such a regimen. Moreover, data shows that estrogen therapy does not reverse the majority of athletic performance parameters, and biological males continue to have innate advantages.3 Regardless of whether a trans-identifying athlete is receiving treatment, dominance over women is still clearly visible. This reality is reflected in the international anti-doping community’s stance on testosterone supplementation. According to the United States Anti-Doping Agency, “testosterone is prohibited in sport at all times.”4 This is because there is an understanding that male hormones give athletes a material and competitive advantage in sports. To allow biological men to compete in women’s sports, while considering testosterone a performance enhancer, is intellectually dishonest. These facts cannot continue to be ignored by the NCAA. 

Other athletics associations are beginning to recognize this scientific fact. In April of this year, the NAIA Council of Presidents unanimously approved a new policy prohibiting the participation of males in women’s sports. Similarly, in June of this year, the Court of Arbitration for Sport ruled that Lia Thomas lacked standing to challenge World Aquatic’s policy barring Thomas from competing in the women’s category for the Olympics. These decisions are rooted in the fundamental knowledge that—while each individual should have access to sports—men and women have biological differences that must be respected. 

While men may have inherent athletic advantages, they have no advantage over women in their level of passion, drive, or desire to compete. The very bedrock of sport is the exhibition of a commitment to excellence, grace under pressure, and fair play among competitors—all of which is threatened absent an even playing field. Women deserve that even playing field and chance to compete, one that can only be achieved by ensuring that only females compete in women’s sports. We urge you to follow the lead of the NAIA and the Court of Arbitration for Sport and adopt policies that protect women’s sports. 

We look forward to working with you to support girls and women in sports. 

 
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