A regional labor board ruled that graduate students at the University of Pennsylvania will be able to vote on whether or not they want to be represented by a union. GET-UP, the organization that has been leading organizing efforts at the university, initially excluded the Wharton School of business and the School of Engineering and Applied Sciences from their proposed bargaining unit. The regional board, however, said that those students should have a say on whether to unionize. As of yet, a date has not been set for the election.
See "Penn grad students earn union vote, with a caveat", Avi Wolfman-Arent, WHYY, December 22, 2017