The campaign did not respond to questions about whether Obama was aware of the problems with buildings in his district during his time as a state senator, nor did it comment on the roles played by people connected to the senator.
Valerie Jarrett, a senior adviser to Obama's presidential campaign and a member of his finance committee. Jarrett is the chief executive of Habitat Co., which managed Grove Parc Plaza from 2001 until this winter and co-managed an even larger subsidized complex in Chicago that was seized by the federal government in 2006, after city inspectors found widespread problems.
Allison Davis, a major fund-raiser for Obama's US Senate campaign and a former lead partner at Obama's former law firm. Davis, a developer, was involved in the creation of Grove Parc and has used government subsidies to rehabilitate more than 1,500 units in Chicago, including a North Side building cited by city inspectors last year after chronic plumbing failures resulted in raw sewage spilling into several apartments.
Antoin "Tony" Rezko, perhaps the most important fund-raiser for Obama's early political campaigns and a friend who helped the Obamas buy a home in 2005. Rezko's company used subsidies to rehabilitate more than 1,000 apartments, mostly in and around Obama's district, then refused to manage the units, leaving the buildings to decay to the point where many no longer were habitable.
Campaign finance records show that six prominent developers - including Jarrett, Davis, and Rezko - collectively contributed more than $175,000 to Obama's campaigns over the last decade and raised hundreds of thousands more from other donors. Rezko alone raised at least $200,000, by Obama's own accounting.
One of those contributors, Cecil Butler, controlled Lawndale Restoration, the largest subsidized complex in Chicago, which was seized by the government in 2006 after city inspectors found more than 1,800 code violations.
Butler and Davis did not respond to messages. Rezko is in prison; his lawyer did not respond to inquiries.