The debate over the Spadina Expressway, and its eventual cancellation, is regarded as a watershed moment in local politics. Toronto City Council was changing at the time to oppose the "top-down" planning of the Metro government. A "Reform Era" in Toronto politics was beginning, which brought to Toronto City Hall David Crombie, John Sewell, Allan Sparrow and Colin Vaughan. This new council viewed the Metro government and its officials with suspicion as not being accountable to local residents. In the 1950s and 1960s, Metro and City Councils had pushed through numerous large projects in transportation, and housing. The impacts on the central neighbourhoods had been substantial and had led to grassroots organizing. Councillors Sewell and Vaughan came directly from the grassroots campaigns.