The ad promotes a bill the South Dakota governor proposed last month that would ban trans girls from playing on female school sports teams.
Gov. Noem is spitting upwind and may get wet.
Neil Gorsuch, Trump appointee to SCOTUS, turned on Trump and cleverly gave transfolk protection from employment discrimination. The majority agreed with his precedent-changing opinion that firing a transperson and replacing her/him with a cisgender gives unequal protection of the law ( 14th Amend.) to the cisgender.
For info, google “scotus gorsuch transgender case”
If you’re masochistic and want to read what Gorsuch wrote, add “text” to your google string.