I teach speech at the community college level, and every semester I hand out the text of the great “I Have a Dream” speech by Dr. Martin Luther King. I have my students do a number of things with the speech, but primarily I have them circle key phrases. And one thing is obvious. Dr. King repeated key phrases over and over again. "I have a dream; one day; now is the time; let freedom ring." And many more. The list is long. And the repetition is powerful, persuasive, all-encompassing. (The full text of the speech is available at Americanrhetoriccom).
For too long, we have focused on this particular outrage or that particular claim from the right. Limbaugh, or Beck, or Gingrich says this offensive/untrue/outrageous thing and we get all worked up and demand a retraction or an apology or a boycott or a termination. We have argued for better framing (which I agree with – I deeply respect the work of George Lakoff).