Palin's Problem Really Isn't Her (Mis)understanding of American History
It's that she strings together random words in the hope that they will turn into a sentence.
She really needs to work on answering questions off the cuff. She sounds dumb, even when she does know what she's talking about (although to my reading of her statements, that seems to happen infrequently).
Palin is such an interesting conundrum on so many levels, but especially as a communicator. On the one hand, she has undeniable star power. Watching her give a good speech is electrifying, even if you disagree with everything she is saying. And she knows how to play to her base. The bullsh*it about the "lamestream media" and "gotcha" questions is completely manipulative.
But then you watch her try to answer a simple question off-the-cuff and she completely discombulates.
At the end of the day, she just doesn't sound like a President. And that, more than anything, will (likely) mean she never will be.