 He credited his win to a combination of grassroots campaigning, a voter registration drive aimed at 18- to 25-year-olds, and a general dissatisfaction with Mayor Murphy.Ravenstahl was sworn in as the youngest member of City Council in Pittsburgh's history in January 2004.During his first few weeks on City Council, Ravenstahl's bill to reduce the newly imposed parking tax from 50% to 33% was vetoed by Mayor Tom Murphy, who was unwilling to balance the budget with $3 million from the Urban Redevelopment Authority.