Respected educator Diane Ravitch has resigned from the editorial board of Education Next because she believes an article in the Spring 2008 issue effectively endorses New York City mayor Michael Bloomberg for President. Ravitch, an historian of education, is a frequent critic of Bloomberg's education policy. Reports Elizabeth Green from The Sun:

''Ms. Ravitch, a professor at New York University who has followed the changes in the New York City schools under Mr. Bloomberg closely and has been a vocal critic, told The New York Sun that she resigned from the board of Education Next after reading the article. 'How can a magazine with an editorial board endorse a candidate for president when no one on the editorial board was consulted?' she said.

''She said she was also protesting inaccuracies in the story, which she said is 'based on ideology, not evidence.' Math scores have risen, she said, but only among fourth-graders. A respected national test, the National Assessment of Educational Progress, last year concluded that New York City eighth-graders had made no significant progress on math and English since Mr. Bloomberg took control of the schools.''

Last November, Ravitch got into a contretemps with Kathryn S. Wylde on the Op-Ed pages of The New York Post.