Freshman Sean P. acknowledges the objections to having Bill Clinton speak at his school’s commencement ceremony this year – the former president's record on abortion and same-sex marriage hardly make him a role model for graduates of a Roman Catholic institution, critics have said. But to Sean, Mr. Clinton’s politics and policies have little to do with his presence at Loyola Marymount University on graduation day. “The president [came] here to speak,” not promote an agenda, says Sean, an international relations major who asked that his last name not be used. And, if anything, Sean adds, the Jesuit-run institution welcomes a variety of people and opinions in a way that encourages debate about tough issues.