Administrators of school districts and public universities across the country will soon welcome thousands of new teachers and professors to orientation sessions. And then those administrators will have to leave the room so unions can recruit new members.

The onboarding process has become a key battleground for the country’s government unions. For decades, labor could count on collecting hundreds of millions of dollars annually from public employees from the moment they were hired. Even workers who didn’t want to join had to pay special fees akin to union dues. That changed in 2018, when the U.S. Supreme Court ruled in Janus v. Afscme that these involuntary payments violated the First Amendment.