According to comedian Tina Fey, anyone can impersonate Republican Vice-Presidential nominee Sarah Palin, because Palin's voice is easy to pick up.   "Not since 'Sling Blade' has there been a voice that anybody can do," Fey says. "Anybody can take a swing at this voice." Appearing on CBS' "Late Show with David Letterman" scheduled to air Friday, Fey said,  "It's a little bit `Fargo,' it's a little bit Reese Witherspoon in `Election,"' said Fey, adding she also borrowed the Midwestern accent of her friend Paula's grandma, "a sweet, sweet old lady from Joliet, Ill. She would always say, `Ohhhh, this and that and stuff like that!"' Fey also says she nails Palin's distinctive speaking style by dropping her 'g's and loading sentences with r's." "She's digging those r's," Fey said. "I think she thinks there's oil in those r's -- she is digging deep!"

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