More than a thousand people rallied in downtown Chicago on Tuesday to protest the lack of affordable housng in the city -- and to call for support from Mayor Daley and City Council members for an ordinance that would require developers of new construction and large rehabs to set aside 30% of units for affordable housing. Read more here.

One executive with a local affordable housing developer argues that set-asides are both necessary and doable -- and that Chicago should join other municipalities in implementing a larger mix of policies to tackle the problem. Read more here.

Photos from Tuesday's action: 1, 2, 3.