During last year's presidential campaign, John F. Kerry was the candidate often portrayed as intellectual and complex, while George W. Bush was the populist who mangled his sentences. But newly released records show that Bush and Kerry had a virtually identical grade average at Yale University four decades ago. In 1999, The New Yorker published a transcript indicating that Bush had received a cumulative score of 77 for his first three years at Yale and a roughly similar average under a non-numerical rating system during his senior year. Kerry, who graduated two years before Bush, got a cumulative 76 for...