Hertzberg vs. Brookhiser

To the Editor:

In his review of Hendrik Hertzberg's Politics (July 4), Richard Brookhiser reveals what seems to be multiple personality disorder. Brookhiser the writer can't help praising Hertzberg's skill (Hertzberg is ''amusing, insightful''; he delights the reader), but then Brookhiser the right-wing hit man pops up with the condemnations (''bland'' and ''boring to read''). Brookhiser's giddy oscillations make him sound like the Nutty Professor and deny your readers a serious review of Hertzberg's book.

Donald Fagen
New York