Negotiations between Rutgers University officials and union leaders are now on their fourth day at the New Jersey State House as faculty members continue to strike. Rutgers President Jonathan Holloway says he expects the meetings to go late into the night.

The bargaining session Wednesday went past midnight. Negotiators returned to Trenton at 11 a.m. Thursday and began meeting behind closed doors. The main issue regards pay for part-time and adjunct faculty.

As the talks continue, Vermont Sen. Bernie Sanders released a video on social media calling the faculty strike “courageous.”

“What you are doing is enormously important and is inspiring workers in higher education all across this country,” Sanders said. “So let me say thank you for your bravery and for inspiring the labor movement across this country. I am proud to stand in solidarity with you.”

Holloway says the university and the unions “continue to make progress toward reaching an agreement.”