Henry noted the dust-up between the netroots and wonkosphere over health care. This has occasioned all kinds of speculation about whether Obama has a problem with the Democratic Party’s liberal base.
Mark Blumenthal provides some evidence to the contrary: Obama’s standing among liberals and among liberal Democrats is very high and hasn’t declined. Some relevant Gallup data are here.
Nate Silver pointed out a few weeks back that the visibility of viewpoints should not be confused with their prevalence. Another way of stating this — and one back by, oh, a half-century of political science — is that the public is often and at best a pale reflection of the views of politicians, journalists, bloggers, etc.