dailyviz

Pollster.com has produced a chart of party self-identification with six national polls since September 1.

Nate Silver has commentary, as well as an earlier post showing the same general trend.

Kristen Soltis also presents data of young voters’ (18-29) party self-identification based on exit polls from presidential elections in 1972 to 2008. Contrary to public opinion, party identification among young voters appears to follow general trends (they’re not, say, overwhelmingly Democratic, contrary to popular opinion). There does appear to be a 5-point swing in the past two elections, though, with the vanishing of young republicans.