Conservatism and liberalism are nothing new in American politics... but the avalanche, and immediacy of demagogic outlets now makes us react more than think.
This brief summation of conservative political thought prior to the '50's' is as current today as it was then.
American conservatism was less a coherent ideology than an irritably reactionary mood: reflexively hostile to the federal government, staunchly isolationist, explicitly anti-modern, anti-intellectual, proudly agrarian, and incapable of distinguishing between communism and New Deal liberalism, which were treated as twin forms of modern tyranny.*
It's no coincidence that the civilizing influences of intellectual conservatism: Whittaker Chambers and William F. Buckley are deceased. Their self-appointed heirs: Gingrich, Rove, Limbaugh, and Beck would be unable to intelligently converse with either of them for both Chambers and Buckley felt there was a legitimate, albeit small, role for government in modern life.
Conservatism centers on orthodoxy, or supplants one - Communism -, for another - Christianity. It seems to only function best when in total opposition, such as in the previous examples, otherwise how can one rally the masses to the presence of evil ? Buckley often claimed the greatest sin of Communism was it's godlessness, not it's totalitarianism.
Liberalism seeks to critique it's own orthodoxies, inherently making it, as best put by Lionel Trilling variousness, possibility, complexity, and difficulty. replete with the accompanying self-doubt and indecision - aka "pointy headedism," which in it's best thinking seeks to avoid all forms of totalitarianism.
Unfortunately for us, liberalism, post 60's (Chicago 8/7, etc.), has become stale, supplicated by wealth, and more fractious and strident with each decade, which may well be why the country has moved to the right. Liberals have lost the national language of simplicity and hope, save under Clinton and Obama. They rarely challenge their own orthodoxies, while attacking other's. And they seek to codify their beliefs (yes, even liberals have those...) into unfathomable stacks of new rules orthodoxy (2500 pages for health care...), hoping that infinite detail settles or obscures each matter once and for all, instead of using day-by-day, practical, simple to understand common sense.
We have met the enemy, and they are us.
Here's an excerpt from FDR's Inaugural Address from 1933, which still seems apt:
This is preeminently the time to speak the truth, the whole truth, frankly and boldly. Nor need we shrink from honestly facing conditions in our country today. This great Nation will endure, as it has endured, will revive and will prosper.
So, first of all, let me assert my firm belief that the only thing we have to fear is fear itself -- nameless, unreasoning, unjustified terror which paralyzes needed efforts to convert retreat into advance. In every dark hour of our national life, a leadership of frankness and of vigor has met with that understanding and support of the people themselves which is essential to victory. And I am convinced that you will again give that support to leadership in these critical days.
American Rhetoric: Franklin Delano Roosevelt - First Inaugural Address
* The Illiberal Imagination | The New Republic