Nate Silver Delivers

This right here is a really cool graph, via Nate Silver.  He explains how party identification can be graphed pretty exactly based on which president/party was in power when voters turned 18.  Cool, no?  I think it's interesting how almost immediately after Bush took office there's a huge spike towards much higher Democratic identification.  I'd also be interested to know what happened with Independent identification....

Partisan ID Gap, Based on Identity of President When Voter Turned 18