By Joan Biskupic; Farrar, Straus and Giroux, New York, N.Y. 434 pages, $28

Here you have a book that no New York lawyer, including this reviewer, can approach with an open mind. Conservatives hail the Honorable Antonin Scalia as a stalwart defender of the Constitution. More than a few of those across the political aisle denounce him as the unprincipled, evil genius of reaction. So sharp a divergence of views has not kept Joan Biskupic, a journalist specializing in coverage of the Supreme Court and a published author, from producing, in “American Original,” a work remarkable for its objectivity as well as its scholarship and extraordinary readability.