President Obama’s scheduled May 17 commencement speech at the University of Notre Dame has sparked protests by some Catholics. The local Catholic bishop, John D’Arcy, said he will boycott the event because some Obama policies contradict church teaching. The Obama administration has upset Catholic leaders by opening federal funding to international family planning groups and embryonic stem cell research, among other actions. The Cardinal Newman Society, a watchdog for Catholic orthodoxy on college campuses, has launched an online petition to stop Obama from speaking at Notre Dame and has gathered tens of thousands of signatures. University president John I. Jenkins, calling Obama “an inspiring leader,” said he has no plans to rescind the invitation.