Seems the author makes his living by teaching on the subject. He's a "light complexion" Mexican who also has an interest in Jewish matters (maybe he's also Jewish?). Here's some background information on him. Maybe things are looking up for Zimmerman now if he's about to get Jewish support on his behalf.
Ilan Stavans (born Ilan Stavchansky on April 7, 1961, in Mexico City) is a Mexican-American, essayist, lexicographer, cultural commentator, translator, short-story author, TV personality, and teacher known for his insights into American, Hispanic, and Jewish cultures.
Ph.D., Columbia University (1990)
M.A., Columbia University (1988)
M.A., The Jewish Theological Seminary (1987)
B.A., Universidad Autonoma Metropolitana (1984)
A.M. (honorary), Amherst College (1998)
Ilan Stavans has taught courses on a wide array of topics such as Spanglish, Jorge Luis Borges, modern American poetry, Latin music, Don Quixote, Gabriel Garcia Marquez, Modernismo, popular culture in Hispanic America, world Jewish writers, the cultural history of the Spanish language, Pablo Neruda, the history of the Spanish language, Isaac Bashevis Singer, Sor Juana Ines de la Cruz, Yiddish literature, Jewish-Hispanic relations, cinema, Latin American art, and U.S.-Latino culture.