Tina Fey opens up about spoofing Republican VP candidate Sarah Palin in the October 20 issue of TV Guide. While she’s having a great time playing Palin on Saturday Night Live, the Emmy-winning comedienne isn’t sure she’s such a big fan of the Alaska governor’s politics.

“If she wins, I’m done. I can’t do that for four years. And by ‘I’m done,’ I mean I’m leaving Earth,” Fey tells the mag.

“Election time is always good for [SNL] and this is a bonkers election. And that lady is a media star,” says the star of NBC’s 30 Rock.

“[Palin] is a fascinating person, she’s very likeable. She’s fun to play, and the two bits with Amy [Poehler], that was super fun,” Tina added.