Arizona Republicans are trying to remove testimony from trans youth advocates against the state's women's sports law over allegations of plagiarism.
“The ultimate gaslight is saying boys are girls,” said Arizona Senate President. Senator Warren Petersentold Fox News Digital in a statement. “Now we have learned that expert witnesses have done more than gaslight. We have presented to the court with multiple examples of identical or substantially identical phrases that other scholars use without attribution.”
Petersen is the primary defendant in disputing Arizona's Save Women's Sports Act, awaiting a decision from the Supreme Court on whether it will hear an appeal for early order.
Petersen, a clinical associate professor of pediatrics, medical director of the gender services program and fellowship director of pediatric endocrinology at the University of Michigan, says that he plagiarized his expert witness testimony at least 22 times in his testimony. Arizona's Save Women's Sports Law.
Our judge will stop in Arizona banning transgender girls on women's school sports teams
People holding transgender flag (Adobe Co., Ltd.)
“For the past two years I have led the charges to defend Arizona's common sense law protecting women in sports,” Petersen told Fox News Digital. “Despite many attacks from the left, I am grateful for this opportunity to defend the integrity of women's sports – especially if there is no state attorney general. I will continue to lead the fight for this law in court, and I hope that the U.S. Supreme Court will ultimately allow the state's women's sports to protect!”
on wednesday, Petersen submitted The request, legally called Dobert's move, made Schumer remove as an expert witness against him.
The move states, “Because Dr. Schumer's opinions are unreliable, he plagiarized them, and he is not qualified to provide them, and does not present objective evidence that his opinions represent good science.”
The document alleges that Schumer wrote the words from a case that challenges Alabama law banning surgery and hormone therapy for minors, and Joshua Sauffer, who was a witness to a case that challenges West Virginia's women's sports law and who failed to provide proper attribution.
One example that Petersen highlighted is that in a report published on October 10, 2024, Shumer copied almost verbatim language from Rosenthal's report submitted on April 21, 2022.
Rosenthal's language states, “Attempts to “cure” transgender individuals by forcing their gender identity to be consistent with assigned sex is harmful, dangerous and ineffective. These practices have been recognized as unethical by all major experts in medical and mental healthcare professionals, including WATH, American Psychology American Association of American Medicine, American Association of Medical and Psychiatry Associations, and Medical and Psychiatry Associations.
Schumer's language is that attempts to “cure” transgender individuals by forcing gender identity to link with birth sex are harmful and ineffective. These practices have been widely accused of being broadly unethical by all major medical and mental health professionals, such as the American Medical Association, the American Medical Association, the American Psychology Association, and the American Medical Association, such as the American Medical Association.

Examples of plagiarism from the move to eliminate expert testimony and Dr. Daniel Schumer's report.
Elizabeth Warren makes ock ha ha gestures while helping to block bills that move them away from women's sports
University of Michigan Guide Define plagiarism “As a misappropriation of someone else's ideas, processes, consequences, or words without giving them appropriate credit.”
On February 18, 2025, in a deposition, Schumer appeared to admit plagiarism.
“I don't think expert reports necessarily constitute research [] These U of M Standard Practice guidelines may or may not apply to expert reports. Also, as an expert in this case, I am not fulfilling any obligations related to my role at the University of Michigan.
When asked during the deposit, he said, “Why do you think you should have quoted the report in your expert report?”
Schumer said, “Because I believe it's the right thing to do. That's when there's the material, when it was written first by someone else you're using to make similar points.”
In deposition, he described him as “medical interventions such as GNRH agonists and 19 gender violation hormones” among the services offered at Mott Children's Hospital's Children's Hospital's Child and Adolescent Gender Services Clinic.
Schumer is also an expert witness in the case of President Donald Trump's executive order, “Protecting children from chemical and surgical amputations.”

Dr. Daniel Schumer and the Transgender Flag. (Photo: Dr. Daniel Schumer's page on the University of Michigan Health website, Transgender Flag: Screenshot of Mike Kemp/ via Getty Images).
He has been featured in various social media posts from Trans With Trans With Trans, an organization founded to create safe and supportive spaces for trans young people and their loved ones, both packing a variety of sessions. on facebook and Instagram He gave it as part of Trans Empowerment Month, celebrated every October.
In an Instagram post on September 12, 2024, she stood with a trance called the “leading pediatric endocrinologist,” and said, “exposing common myths, walking through the referral process of pediatric gender clinics, providing valuable information to both young people and parents.”
Fox News Digital I contacted Schumer and the University of Michigan for comments but did not receive an immediate response.
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