The case the Supreme Court will hear Wednesday is brought by a doctor and three transgender teens with their families – including L.W. and her parents, Brian and Samantha Williams. Their suit challenges a law in Tennessee, but nearly half of states have banned certain treatments for minors with gender dysphoria, so the implications of the Supreme Court case could be wide-ranging.  When the Williams family first sought out hormone treatment for their daughter, it wasn’t illegal in any state, but over the past few years, trans kids have increasingly become a talking point for Republican lawmakers.Elahe Izadi speaks with reporter Casey Parks about what the law in Tennessee has meant for L.W. and her family – and what a ruling in this case could mean for the tens of thousands of kids who live in states where gender transition care is restricted. Today’s show was produced by Emma Talkoff and Ariel Plotnick with help from Bishop Sand. It was edited by Maggie Penman with help from Reena Flores. It was mixed by Justin Gerrish.Subscribe to The Washington Post here.