Rachel Maddow is what is called coherent. She makes an argument based on data and if you want to dismiss the argument you have to go back to the facts and their interpretation.
Why rely on data and your own interpretation of the data when you can rely on slogans? That way you don't have to ponder and you can let emotions, prejudices, mischaracterizations fed to you and stereotypes do the thinking for you?
Thank the Lord!! She IS coherent. And even when I disagree with her, I can follow her train of logic and appreciate her intelligence.