Here’s that White House petition. It’s official, which means that it gets enough signatures, the president has to respond.
And here are some US-based organizations to support:
- National Center for Transgender Equality
- Sylvia Rivera Law Project
- Transgender, Gender Variant & Intersex Justice Project
- Transgender Law Center
Readers from other countries, do some googling to find your own local groups. General LGBTQ+ organizations that include trans rights as part of their broader mission are also good targets for support.