Cohen decided not to run for another term in 2009 and left office on Jan. 1, 2010, replaced by political newcomer
Setti Warren, who won a close race against State Representative
Ruth Balser. Cohen's final term ended with controversy over the city's new
Newton North High School. With a price tag of nearly $200 million, the school is the most expensive in Massachusetts. He said he chose not to run for a fourth term because he did not want to harm efforts to override
Proposition 2½. ==See also==