San Francisco Mayor Gavin Newsom speaks at a Black History Month celebration at City Hall in San Francisco, Friday, Feb. 2, 2007. Newsom's former deputy chief of staff, Alex Tourk, resigned as manager of the mayor's re-election campaign Wednesday after approaching Newsom about Newsom's relationship with his wife, Ruby Rippey-Tourk, who worked as the mayor's appointments secretary until last spring. (AP Photo/Jeff Chiu)