Campaign donations since 2015, mapped.
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Born into power
Former state representative Deb Mell was appointed to her position by mayor Rahm Emanuel in 2013 following her father Dick Mell's retirement. Dick was a member of the racially motivated opposition to Harold Washington's mayorship, called the Vrdolyak 29. He also made the political career of of Deb Mell's disgraced brother-in-law, former Illinois governor Rod Blagojevich, who is currently serving 14 years in federal prison for corruption. Dick Mell was routinely embroiled in scandal for improperly leveraging his position and influence, including for illegally owning and operating a landfill while alderman, immediately becoming a lobbyist for real estate after leaving office and providing his daughter will rent free office space for her campaign., as well as many others. There were many allegations of corruption and voting irregularities after Deb Mell's 2015 re-election. 
Five of the top ten donors to her 2015 campaign were real estate companies, and she is also heavily funded by other political campaigns. Her father has given her over $50,000 in donations and Novak Construction gave over $16,000 to her campaign after her brother, Richard D. Mell, was a lobbyist for them.  Deb Mell has fairly substantial donations in the $1000-2500 cumulative range, from a lot of real estate and development businesses, as well as some of the contracting and construction unions. Community groups, especially tenants unions, have called her out for the gentrification that's plagued her ward as she's accepted donations from real estate.
Note: Reclaim Chicago and The People's Lobby endorsed Rossana Rodriguez for 33rd ward alderman.