If I were he, I might insist that Gettysburg College return all the money he donated over the years, and then donate it to some conservative school, like Hillsdale (sp). Very publicly.
From the article:
“”Mr. Stern, a professor of Judaic studies, has demanded that the college return Mr. Garthwait’s donations: “The longer we hang onto the money, the longer and more conflicted the story becomes.””