by SELENA SIMMONS-DUFFIN

At the heart of a story now playing out in schools, workplaces and courts across the U.S. is a disagreement over the legal meaning of the word "sex" — and whether discrimination against gay and transgender people for being gay or transgender is sex discrimination.

The White House has a particular kind of power over this question. It has the power to interpret whether LGBTQ people are protected by sex discrimination protections in laws passed by Congress, to issue rules and policies that reflect that interpretation, and — through those actions — the power to send a message to the country.

In the last several years, two White House administrations have used this power in diametrically opposite ways. LGBTQ activists and their allies say it feels like civil rights "whiplash."

Take, for instance, the Obama administration's guidance to schools on transgender students that came out in the spring of 2016. It required schools to protect transgender students from harassment, accommodate their preferred names and pronouns, and give them access to the locker rooms and bathrooms of their choice.

Sasha Buchert clearly remembers the relief she felt when that guidance came out. At the time, she was an attorney with the Transgender Law Center in Oakland, Calif., tracking these issues closely, and watching as the country became consumed with what the New York Times editorial board referred to as "trans bathroom hysteria."

Earlier that year, a bill called HB2 had passed in North Carolina requiring people to use the bathrooms that matched their birth certificate. During debate on that bill in the North Carolina statehouse, Buchert listened to the untelevised special session from her office in Oakland — it was 4 a.m. on the West Coast.

"It passed and my heart just sank," she says. Read more via NPR