BHL: philosopher?

Can anyone explain to me what Bernard-Henri Lévy has done to be called "a ... leftwing philosopher"? Everytime the British literary pages mention him - and they mention him a lot - he's always a "leftwing philosopher". Yet, from an online bibliography, I see no titles to compare with publications by the foremost names in recent French philosophy: Lacoue-Labarthe, Nancy, Deleuze, Badiou, and certainly not giants like Derrida, Blanchot and Levinas, even though all of these have written about literature and politics. (Try searching The Guardian's pages for coverage of these illustrious writers!). The nearest is a book on Sartre, though the subtitle indicates its real focus. BHL seems to be no more a philosopher than Christopher Hitchens, and about as "leftwing".