The Problem with Polls

I've talked about poll problems before, but this is a great piece from 538.com which details that polling is facing problems not just because some do not call cell phone users (which are now the 20/30 crowd), but because people do not like the robo calls, do not speak English and several other reasons.  Also, when you go to the page you can see the probability of each targeted House race going D or R as well as the Senate and gubernatorial races.