The politics of culture , and the intersection of politics and culture , is something I 'd like to do more of at this place , '' says Ms. vanden Heuvel , who championed The Nation 's switch from type-based to picture-based covers in 1995 , the year she became editor in chief and a part-owner of the magazine after joining a group of investors , including E. L. Doctorow and Paul Newman , mobilized by Victor Navasky , her predecessor as publisher . ''