SPEAKER SPOILS — Paying back support — Melissa Mark-Viverito announced the backing of 30 Council members last night, enough to make her the next speaker of the City Council. She held the Progressive Bloc, swayed the Brooklyn delegation, peeled away seven votes from powerful Queens County, and even enticed one skeptical Republican to support her. So, what will all that support cost?

Here’s one version I heard , from a source familiar with the Democratic county leaders, who backed rival Dan Garodnick of Manhattan: Jimmy Van Bramer — one of the Queens breakaways — will get to chair the coveted Finance Committee. (Another knowledgeable source said the post may go to Julissa Ferreras, also from Queens.) David Greenfield of Brooklyn, which also broke late for de Blasio, is likely to get the Land Use Committee. Brad Lander of Brooklyn — a key figure of the Progressive bloc, the backbone of Mark-Viverito’s coalition — will be named Deputy Speaker for Policy.