A new Pew Research Center poll shows that Americans are more divided than ever on issues of race, religion, education, and sex.
In the nation's deep cultural divide between conservatives and liberals, one explosive code word in the liberal dictionary is "ideology."
During his 2008 presidential inauguration, President Obama urged a "declaration of independence" from ideology.
Ideologues, in the leftist worldview, are extremists with a rigid thinking entrenched in the past. Liberals and progressives, on the other hand, are pragmatists, interested only in what works best for society.
But some ask critics ask -- Don't liberals have their own ideology on issues such as climate change and partial birth abortion?
In best-selling author Jonah Goldberg's new book, The Tyranny of Clichés: How Liberals Cheat in the War of Ideas, he notes an unwillingness on the part of liberals to admit to their own ideology
Goldberg writes that "extremists" have a very bad reputation, while "moderates" are good in the liberal lexicon.
Why, he asks, in a nation separated into red states and blue states, are conservative Republicans called the "Taliban Wing" of the GOP and considered even more dangerous than the Taliban itself?
Meanwhile, New York City Mayor Michael Bloomberg is the driving force behind the embodiment another cliché: "prevention" in health care.
He stopped the sale of trans-fats and large soft drinks and lattes in Manhattan, forcing residents to make choices they won't make by themselves.
Finally there are the clichés used by both parties -- "violence never solves anything" or "war can never be a solution."
But the founders of the American Revolution, as well as those who opposed Adolph Hitler and Osama bin Laden, might disagree with such notions.
Jonah Goldberg talked more about his new book and how he believes liberals "cheat in the war of ideas," on "The 700 Club," June 11. Click play to watch the interview.