These days, the answer is more likely to be "Yes". At least for graduate students that do some form of teaching, in addition to taking classes and doing resear

These days, the answer is more likely to be "Yes". At least for graduate students that do some form of teaching, in addition to taking classes and doing research. See https://en.wikipedia.org/wiki/Graduate_student_employee_unionization#United_States https://en.wikipedia.org/wiki/Graduate_student_employee_unio... for more information.