As New York City Mayor Bill de Blasio, center, looks on, New York City Schools Chancellor Carmen Farina, right, talks to President of the United Federation of Teachers Michael Mulgrew during a news conference at City Hall in New York, Thursday, May 1, 2014. New York City and its largest teachers union struck a deal on a new contract Thursday, ending a nearly five-year labor dispute and potentially setting a template for negotiations with the city's other unions. (AP Photo/Seth Wenig)