WASHINGTON - When it comes to the Supreme Court, only one case comes to Sarah Palin's mind: Roe v. Wade.

In an interview broadcast Wednesday on the "CBS Evening News," the Republican vice presidential candidate cast herself as a federalist in explaining why she thought the court got it wrong on the landmark decision that legalized abortion.

She also could not name any other decisions by the high court that she disagrees with.

"I think it should be a states issue not a federal government, mandated, mandating yes or no on such an important issue," said Palin, who opposes abortion except in cases where the pregnancy threatens the woman's life.

"I'm in that sense a federalist, where I believe that states should have more say in the laws of their lands and individual areas," she added.

Asked what other Supreme Court decisions she disagrees with, Alaska's governor couldn't name any.

"Well, let's see. There's, of course, in the great history of America rulings there have been rulings, that's never going to be absolute consensus by every American," Palin said. "And there are, those issues, again, like Roe v. Wade where I believe are best held on a state level and addressed there. So you know, going through the history of America, there would be others but ...."

Asked again to name a decision she disagreed with, Palin replied: "Well, I could think of, of any again, that could be best dealt with on a more local level. Maybe I would take issue with. But you know, as mayor, and then as governor and even as a vice president, if I'm so privileged to serve, wouldn't be in a position of changing those things but in supporting the law of the land as it reads today."

In a separate interview, Democratic vice presidential candidate Joe Biden also was asked about Roe v. Wade. He said it was a good decision "because it's (as) close to a consensus that can exist in a society as heterogeneous as ours."