~snip~
Tea Partiers are getting all the press. But the anger on the left, including much of the Democratic base, is almost as intense. And it spells trouble for Democrats a few months from now.
~snip~
When Republicans control Congress or the White House, their base can get restless but doesn't seem to suffer the same disillusionment. Republicans stood by Ronald Reagan in the 1982 midterms and rallied enthusiastically for his re-election in 1984. They were out in force for George H.W. Bush's 1990 midterm as well as George W. Bush's in 2002 and his 2004 re-election. Why the asymmetry?
First, the Republican base keeps the heat on after elections so Republican officeholders accomplish what they promise and are less likely to compromise in the first place. The Republican base fueled the Reagan and George W. Bush tax cuts and penalized George H.W. Bush only after he reversed his "read my lips" pledge not to raise taxes.
The Republican base is part of a conservative movement. The Democratic base, by contrast, is a loose coalition that elects a new president and then goes home, expecting the new president to deliver miracles.
~snip~
With the election of Barack Obama, many on the left found comfort in the belief that a single man could make transformative change without powerful tailwinds behind him. But that was a pipe dream. Rather than feel discouraged and angry by a president and representatives that seem to bend to the prevailing winds from the right, David and others like him must drum up a storm.
http://prospect.org/cs/articles?article=fire_on_the_left