Rob Shuter
Bristol Palin and Levi Johnston shocked the world when they announced they were engaged again. The on-again, off-again couple seemed happy despite Sarah Palin's obvious disapproval of their reunion. It's no surprise considering her future son-in-law has betrayed and bad-mouthed the Palin clan on numerous occasions. According to a Palin insider, Sarah has already threatened him if he ever messes with her family again.

"Levi did everything he could to destroy Sarah and her family. He has accused Sarah of being a bad mother, a bad wife and a bad leader. How can he walk back into their life like nothing happened? He should think again," a Palin insider tells me. "He may have won Bristol back, but he will never gain the trust of Sarah. She doesn't forgive and forget."