Harvard Law School professor emeritus Alan Dershowitz says he has formally left the Democratic Party after six decades, citing what he calls its growing hostility toward Israel — a trend he argues is epitomized by New York City mayoral…

Harvard Law School professor emeritus Alan Dershowitz says he has formally left the Democratic Party after six decades, citing what he calls its growing hostility toward Israel — a trend he argues is epitomized by New York City mayoral…