President Barack Obama won't be re-elected in 2012 unless he can "toughen up" on national security, according to Sarah Palin. The former Governor of Alaska believes that declaring war on Iran could help the president get re-elected.

"Say he decided to declare war on Iran or decided really to come out and do whatever he could to support Israel, which I would like him to do," Palin told Fox News' Chris Wallace Sunday. "That changes the dynamics in what we can assume is going to happen between now and three years."

Palin clarified that she doesn't think that Obama would cynically "play the war card" to help his 2012 bid. "I'm saying if he did, things would dramatically change if he decided to toughen up and do all that he can to secure our nation and our allies," she said.

Palin said she doesn't think Obama would be re-elected if he ran today.

Obama could find himself going up against the former governor when he runs for re-election. Palin told Chris Wallace that she wasn't ruling out the possibility of running for office. "I won't close the door that perhaps could be open for me in the future," she said.

This video is from Fox's Fox News Sunday, broadcast Feb. 7, 2010.

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