My own answer to the question of how things got this bad has less to do with whether Obama should have been more liberal or more centrist than with his and his party’s apparent inability, or perhaps refusal, to offer broad and convincing arguments about their central beliefs that counter those of the Republicans. This problem goes back to the Reagan years. It is a failure that many Democrats and liberals hoped Obama could change—something he seemed capable of changing during the campaign but has addressed rather poorly once in office.
In American politics, Republicans routinely speak in broad themes and tend to blur the details, while Democrats typically ignore broad themes and focus on details. Republicans, for example, speak constantly of “liberty” and “freedom” and couch practically all their initiatives—tax cuts, deregulation, and so forth—within these large categories. Democrats, on the other hand, talk more about specific programs and policies and steer clear of big themes. There is a reason for this: Republican themes, like “liberty,” are popular, while Republican policies often are not; and Democratic themes (“community,” “compassion,” “justice”) are less popular, while many specific Democratic programs—Social Security, Medicare, even (in many polls) putting a price on carbon emissions—have majority support. This is why, when all else fails, Democrats try to scare people about the threat to Social Security if the GOP takes over, as indeed they are doing right now.
What Democrats have typically not done well since Reagan’s time is connect their policies to their larger beliefs. In fact they have usually tried to hide those beliefs, or change the conversation when the subject arose. The result has been that for many years Republicans have been able to present their philosophy as somehow truly “American,” while attacking the Democratic belief system as contrary to American values. “Putting us on the road to European-style socialism,” for example, is a rhetorical line of attack that long predates Obama’s ascendance—it was employed against the Clintons’ health care plan as well.