It's real simple, folks: During the Great Depression, FDR addressed the country on the radio in his famous "Fireside Chats."*
Biden amusingly misdescribed this history by saying:
Which seems to me about as substantive a "gaffe" as saying that you "taped" your favorite television show when actually you recorded it on your DVR.
As compared to Palin's various arrangements of word salad, from which it is impossible to prescind any comprehensible intended meaning whatever.
All told, the comparison is about as close as, say, the current Intrade gap. Which is to say closer than Lou Dobbs will ever be to journalism.
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* And we can be sure Sarah Palin heard about those (probably in that vast variety of news sources she consults).