The Supreme Court will hear oral arguments on Tuesday, Oct. 7 in Chiles v. Salazar, which concerns a challenge to Coloradoâs ban on âconversion therapyâ â treatment intended to change a clientâs sexual orientation or gender identity â for young people. Kaley Chiles, a therapist in Colorado Springs and a practicing Christian, argues that the ban violates her right to free speech because it imposes âa gag order on counselors.â But Colorado counters that the ban merely regulates the treatments that mental health professionals can provide because conversion therapy has been found to be âunsafe and ineffective.â Â
The law at the center of the case is known as Minor Conversion Therapy Law. Passed in 2019, it prohibits mental health professions from providing clients under the age of 18 with conversion therapy, although that bar does not apply to someone who is âengaged in the practice of religious ministry.â
Chiles, a licensed professional counselor, went to federal court in 2019, seeking to block the state from enforcing the law against her. Chiles says that she does not try to âconvertâ her clients but instead only tries to help them âwith their stated desires and objectives in counseling, which sometimes includes clients seeking to reduce or eliminate unwanted sexual attractions, change sexual behaviors, or grow in the experience of harmony with oneâs physical body.â
The district court rejected Chilesâ request to prohibit the state from enforcing the law against her while her challenge proceeded through the courts, and a divided three-judge panel of the U.S. Court of Appeals for the 10th Circuit upheld that ruling.
The 10th Circuit concluded that the stateâs ban on conversion therapy regulates conduct â treatment of a client by a licensed mental health professional â that âincidentally involves speech.â Therefore, it reasoned, the law should be reviewed under the ârational basisâ test, the least stringent form of review in constitutional challenges, and it passed that relatively low bar.
Judge Harris Hartz dissented. He wrote that although âthe result reached by the majorityâupholding the Colorado prohibition on Chilesâmay ultimately be correct,â his colleagues had made âseveral fundamental errors.â In particular, he emphasized, âthe majority opinion treats speech as conduct.â
Chiles came to the Supreme Court last fall, and in March the justices agreed to weigh in.
In her brief on the merits, attorneys for Chiles push back against the suggestion by the court of appeals and the state that the ban on conversion therapy merely regulates conduct, with any effect on speech merely a by-product of that regulation. She emphasizes that speech is not âincidentalâ to her treatment, contending that her âcounseling conversations involve no conduct. The only tool she uses is speech.â
Because Chiles uses only talk therapy, she continues, the application of the ban hinges solely on the message that she conveys during her therapy. For example, she writes, she can help her clients to âembrace a transgender identity. But if those clients choose to align their sense of identity with their sex by growing comfortable with their bodies, Chiles must remain silent or risk losing her license, her livelihood, and the career she loves.â This, she argues, amounts to discrimination based on the content of her speech or the viewpoint that she expresses, which in turn means that the Colorado ban must be subject to strict scrutiny, the most stringent form of constitutional review, rather than rational basis review, the test that the lower courts used.
If strict scrutiny is applied, she contends, the conversion therapy ban fails as applied to her. First, Colorado cannot show that it has a compelling government interest in maintaining the ban because
âno study shows that this type of counseling causes harm.â To the contrary, Chiles suggests, Colorado âis actually inflicting harm through itsâ ban, because the law âcuts off distressed kids and their families from the counseling they seek.â
Second, the law is not narrowly tailored â that is, carefully written to place as few restrictions as possible on speech. Coloradoâs ban is both over- and underinclusive, Chiles writes. For example, it prohibits âall caring counseling conversations when a client seeks change for any behavior, feeling, or identity connected with gender identity or sexual orientation.â At the same time, it allows other people who are not licensed counselors âto have the same conversations it bans for Chiles, and it even permits licensed counselors to have the same conversations with adults.â Coloradoâs âtrue aim,â she concludes, is âto silence and marginalize views it dislikes by gagging the professionals best equipped to speak on the issues.â
Chiles warns that if the Supreme Court upholds the 10th Circuitâs ruling and allows the state to apply its ban to her, it would allow states âto interfere with countless conversations between professionals and their clientsâ â by, for example, prohibiting âdoctors from discussing birth control or counselors from encouraging (or discouraging) options like divorce.â
In a âfriend of the courtâ brief supporting Chiles, the federal government acknowledges that the Colorado law âreaches conduct that has no First Amendment protection because it is not carried out through speech, such as using negative stimuli to create an aversive response.â But in Chilesâ case, U.S. Solicitor General D. John Sauer says, the state is simply regulating her messages to her clients, âand the State is doing so because it disagrees with the viewpoint conveyedâin short, the law regulates speech as speech.â
Sauer tells the justices that they should send the case back for the lower courts to apply strict scrutiny. But based on the record in the case, he continues, the state is unlikely to prevail if that test is applied. âWhile Colorado has compelling interests in protecting minors from harmful or ineffective treatments provided by licensed mental-health professionals,â Sauer writes, âthe State appears to lack persuasive evidence that the ⦠ban on conversion therapy substantially advances those interests, raising the inference that the State is merely seeking to suppress a disfavored viewpoint.â
In its brief at the Supreme Court, Colorado stresses that it âenacted its conversion therapy law in response to a growing mental health crisis among Colorado teenagers and mounting evidence that conversion therapy is associated with increased depression, anxiety, suicidal thoughts, and suicide attempts.â The actual sweep of the conversion therapy ban, the state insists, âis exceedingly narrow.â âThe only thing that the law prohibits therapists from doing is performing a treatment that seeks the predetermined outcome of changing a minorâs sexual orientation or gender identity because that treatment is unsafe and ineffective.â And indeed, the state suggests, even Chiles does not contend that she intends to violate the law. Instead, she concedes that she âdoes not seek to âcureâ clients of same-sex attractions or to âchangeâ clientsâ sexual orientation.â
The state also echoes the 10th Circuitâs conclusion that the ban on conversion therapy merely regulates a form of treatment, rather than speech. States have long regulated health care, it notes, âto protect patients from substandard treatment.â In light of the stateâs findings that conversion therapy âis unsafe and ineffective,â it writes, that is precisely what Colorado is doing here: the ban âprohibits a specific healthcare treatment that violates the standard of care. Coloradoâs law is no different, for First Amendment purposes, from barring doctors from urging lung cancer patients to take up smoking.â
During the time that states have regulated health care, Colorado continues, âthe First Amendment has never barred statesâ ability to prohibit substandard care, regardless of whether it is carried out through words.â Colorado urges the Supreme Court to maintain that status quo. If the court were to agree with Chiles, it suggests, states would no longer be able to âensure mental healthcare professionals comply with the standard of care.â And more broadly, it cautions, âbecause so much health careâregardless of the fieldâis delivered exclusively through words,â a ruling for Chiles âwould destabilize longstanding and sensible healthcare regulation.â
Because the conversion therapy ban regulates treatments, rather than speech, the state concludes, rational basis review â rather than strict scrutiny â should apply. But in any event, the state insists, its ban can survive even strict scrutiny. Coloradoâs âinterest in protecting minors from ineffective and harmful healthcare practices is of the highest possible order,â it argues. And the ban âis narrowly tailored to regulate only the one specific discredited practice of conversion therapy. It does so without limiting any other communication that licensed professionals wish to have with their patients or others about sexual orientation, gender identity, or their views on conversion therapy.â
Cases: Chiles v. Salazar
Recommended Citation:
Amy Howe,
Does Coloradoâs âconversion therapyâ ban violate free speech?,
SCOTUSblog (Oct. 2, 2025, 12:03 PM),
https://www.scotusblog.com/2025/10/does-colorados-conversion-therapy-ban-violate-free-speech/





