The Mayoral election of 1933 in Pittsburgh, Pennsylvania was held on Tuesday, November 6, 1933. In a realigning election, Democrats regained control of the mayor's office for the first time in 28 years; they have not relinquished this position since. The incumbent mayor, John Herron of the Republican Party chose to run for his first full term. Herron had been elevated to the executive office from his position as city council president after Charles H. Kline resigned over a fiscal scandal; he inherited a party whose once efficient machinery was in crisis. Democrats, led by new powerful grassroots organizer David Lawrence selected William McNair, an idealistic and outspoken attorney as their candidate. With the beginnings of the New Deal being set into place, Pittsburgh's strong labor community moved rapidly toward the Democrats, creating a huge shift in voting patterns and allowing McNair to win.