On issues from climate change to health care to Afghanistan to stimulus to banking regulation there is a critique-from-the-left that doesn’t get heard at all. And even on the issues where I don’t, personally, buy the critique-from-the-left I think it’s regrettable that it’s become so obscured.
This is the key unacknowledged (by journalists) feature of our official political discourse. You get the occasional "liberals fighting each other" piece which might point out that wimmenfolk or gay people or minorities are upset about abortion or gay rights or immigration but actual lefty opinions on those subjects, along with more general economic and policy issues, are almost never allowed to surface.