Death threats to former Alaska Governor Sarah Palin have increased to unprecedented levels in the wake of Saturday’s shooting in Tucson, an aide tells ABC News.

Following the attack that seriously wounded Democratic Rep. Gabrielle Giffords and killed 6 others, Palin has found herself embroiled in a firestorm of controversy. Numerous left-wing commentators have accused Palin’s hard-hitting partisan rhetoric of influencing accused shooter Jared Lee Loughner.

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