The student senate at Santa Clara University rejected a petition to form a campus chapter of Turning Points USA, a conservative activism group, because opponents of the group complained that its presence would make them feel “unsafe” — and because of the “mood” on campus since Donald Trump was elected president.A full-time school employee also primed Santa Clara student senators with a lengthy PowerPoint presentation associating Turning Points USA with vile, fringe white supremacist groups.The rejection occurred on Thursday night during a meeting of the Associated Student Government at the Jesuit bastion in the thick of Silicon Valley.