Sarah Palin has a very distinctive way of speaking. Except when she doesn’t.
Slate attempts to decode the Governor’s minstrelsy for their audience
Some people dislike it, finding it harsh or grating; others regard it as charming or authentic. These are common responses to a distinctive accent. Depending on the context, such an accent can make a person seem stupid or uneducated or, conversely, honest and folksily trustworthy—often at the same time. Some people exploit this for effect, emphasizing and de-emphasizing dialect features to prompt a particular reaction.