This is not law.
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The directive for schools came from executive branch.
Below are two threads for review:
43 Republicans Join Democrats to Support Obama’s Transgender Agenda
http://www.freerepublic.com/focus/f-religion/3434232/posts
Whereas last week Congress voted to reject this proposal—known as the Maloney Amendment—last night they voted to ratify Obama’s 2014 executive order barring federal contractors from what it describes as “discrimination” on the basis of “sexual orientation and gender identity” in their private employment policies.
Final Betrayal:Ryan Republicans Join Obama as #ToiletTerrorists (Uses 43 Repubs to Help Obama)
http://www.freerepublic.com/focus/f-news/3434109/posts
The reality is that Paul Ryan has long been a supporter of ENDA (Employment Non Discrimination Act), the legislative vehicle for enshrining transgenderism into law and mandating adherence to its dogma on private businesses.
The bill was blown away today, thanks to the trans amendment.
Trans are not specifically addressed in any gay law. They are not a protected class.