Using census and public opinion statistics, along with data on congressional districts and party platforms, Gainsborough demonstrates that this "ideology of localism" weakens when suburbs experience city-like problems and strengthens when racial and economic differences with the nearby city increase. In addition, Gainsborough uses national survey data from the 1950s to the 1990s to show that a separate suburban politics has arisen only during the last two decades. Further, she argues, the political differences between urban and suburban voters have found expression in changes in congressional representation and new electoral strategies for the major political parties. As Congressional districts become increasingly suburban, "soccer moms" and liveability agendas come to dominate party platforms, and the needs of the urban poor disappear from political debate. uses the tools of political science to prove what political commentators have sensed—that the suburbs offer a powerful voting bloc that is being courted with sophisticated new strategies.