JACK RAKOVE, the William Robertson Coe Professor of History and American Studies and a professor of political science at Stanford University, is one the most distinguished historians of the early American republic. He is the author of, among other books, "Original Meanings: Politics and Ideas in the Making of the Constitution, " which won the Pulitzer Prize in 1997. He frequently writes op-ed articles for the "New York Times, " the "Washington Post, " and other major newspapers. He has been an expert witness in Indian land claims litigation and has testified in Congress on impeachment.