Palin makes the leftards furious because she refuses to play the game by their rules.
When attacked, she doesn’t get defensive; she attacks right back. When they change the subject, she doesn’t get distracted; she stays on message.
She refuses to let the left define the terms of the debate. This is why they despise and fear her so much.
They don't know what to do when their Saul Alinsky tactics are neutralized.