Wanted to share the broader picture for anyone trying to understand what's actually happening right now, because it's a coordinated push and the state ballot measures are part of it, not separate from it.

Federal layer:

SCOTUS ruled 6-3 in WV v. B.P.J. that states may ban trans athletes under Title IX. The ruling permits but doesn't require bans.  
Trump admin announced Medicaid/CHIP will stop covering gender-affirming care for trans youth (puberty blockers, hormones, transition-related surgeries).  
HHS/CDC are citing the Cass Review to justify policy — even though the Cass Review has been thoroughly debunked by actual researchers.  
Education Department's OCR has launched dozens of investigations of school districts; the Jeffco one is a notable Colorado example (the "61 boys on girls' teams" figure turned out to include mascots, trainers, and managers — the investigation was based on data known to be miscategorized).  
State layer:

27 states already have sports bans via legislation; 27 have medical bans. None have been passed by voters.  
Colorado, Arizona, Washington, and potentially Nebraska have similar ballot measures this November.  
Same template bills. Same out-of-state funders. Same messaging.  
Why the ballot measures specifically matter:  
Every existing ban was passed by a Republican trifecta. Never by voters. If they win at the ballot box in November, they get a "popular mandate" they can point to. The playbook gets exported.

The WaPo piece on the SCOTUS aftermath does a good job laying this out. Worth reading.

Connecting the dots: SCOTUS, federal Medicaid cuts, and the Colorado ballot measures are the same fight