Norm Coleman rents a basement apartment on Capitol Hill for $600 per month. He gets this remarkable deal because his landlord is a friend and business associate, Republican operative Jeff Larson.
It appears the apartment is pretty nice; here's the description from when it was previously on the market in 2007...
Given the location, and the apparent quality of the apartment, you'd think Coleman was paying well below market value. And you'd be right. Apartments that good usually go for 2-3 times as much as Coleman is paying...If Coleman really is getting his housing subsidized by his buddy Larson, of course, this is not merely shady activity. It would potentially be a violation of Senate ethics rules, particularly the gift ban.
Article by brownsox of Daily Kos
http://www.dailykos.com/story/2008/8/15/113244/193/135/568370