email attacks On September 11, 2010, 20 of Nenshi's campaign advertisements in the city were vandalized or destroyed and a brick was thrown through one of his campaign office's windows. The attacks, which commemorated the ninth anniversary of the September 11 attacks in New York City, were accompanied by a series of racially antagonistic emails. They were therefore widely assumed to be racially motivated. 2013 mayoral election 2013 mayoral campaign During this fundraising Gala, Nenshi issued a challenge to his opponents to confront him directly and not to engage him in a proxy campaign of lobbying as he warns his supporters that his opponents will likely engage in. In September 2013 when Nenshi's campaign began in earnest, he revealed the donors of his campaign before the election and urged his opponents to do likewise. Nenshi promised to instigate changes to improve the transparency of City Hall's municipal affairs as one of his 2010 campaign statements. According to the documents Nenshi's 1631 supporters derive from a wide range of core supporters. Among Nenshi's larger contributors were contractors from the housing construction industry, which according to Nenshi indicates that not all among the trade were antagonistic to Nenshi's anti-urban sprawl policies enacted early in his term. Abolition of developer subsidy For his campaign platform, Nenshi proposed to abolish the $4,800 granted to home builders, aiming to save the city $33 million per annum. According to Nenshi, the subsidy over a decade contributed to the municipal debt of $1.5 billion. Nenshi wanted free market factors to take hold of the housing market and developers to contribute to funding infrastructure to far-reaching suburbs by paying levies. The Manning Centre for Building Democracy supported the motion as supporting free market principles. The group however believed developers should pay slightly increased taxes as long as inner city communities equally also contribute their share of growth costs. International Avenue business redevelopment zone In October 2013, Nenshi and Councillors Andre Chabot and Gian-Carlo Carra proposed to realize a 2008 plan by then-Mayor Dave Bronconnier to redevelop International Avenue (17th Ave SE) as a vital transportation hub. Since inception of the plan in 2010, the project has been delayed due to costs. The plan incorporates a C-train line and rapid bus lanes, proposed in Calgary Transit's 'Route Ahead' plan. As well, the revitalization incorporates urban renewal projects like renovated apartments and business buildings. Carra studied the circumstances for Forest