Court Ruling Reopens Debate Over Unions for Grad-Student Researchers

The day Michigan’s governor signed a bill to bar graduate research assistants at the state’s public universities from unionizing was bleak for Andrea M. Jokisaari, who had spent the better part of two years organizing for a union vote at the University of Michigan.

“We felt cheated,” said Ms. Jokisaari, a doctoral student in materials science and engineering on the Ann Arbor campus. The bill—which was