A public university has pulled an offer for one college credit for students who travel to Washington to protest Republican U.S. Sen. Susan Collins as she considers Supreme Court nominee Brett Kavanaugh.

University of Southern Maine President Glenn Cummings said Wednesday the "pop-up course" was hastily arranged without his or the provost's knowledge.

Maine GOP shared a Wednesday email in which a university employee says students could receive college credit for bussing to Washington, D.C., to demonstrate. The email links to an online form asking students if they're willing to be arrested.

Cummings said the university immediately pulled the credit offering and said no university money will go to the trip, set for Wednesday night. Maine GOP spokeswoman Nina McLaughlin demanded to know which outside group organized the "liberal sham."