Cindy McCain said she disagrees with Sarah Palin’s view that abortion should be illegal without exceptions for victims of rape and incest or to protect the health of a woman.

In an interview with CBS News scheduled to air Wednesday night, the wife of GOP presidential candidate John McCain said she and Palin don’t have to agree on every issue.

She also said she is “on the record of being pro-life, like my husband.” But when CBS anchor Katie Couric asked if she supports an outright ban on abortion including in cases of rape and incest, she said no.

"No? So that's where you two differ," Couric asked.

"Uh-huh," McCain replied.

"What I agree with is the fact that she is a social conservative," McCain said. “She is a reform-minded woman, she is someone that will shake … Washington up, which is exactly what we want to do.”

In answers to a recent questionnaire from the Eagle Forum, a conservative group, Palin indicated she did not support exceptions for rape and incest victims, or to protect a woman’s health. She did support an exception to protect a mother’s life.

“I am pro-life,” she wrote. “With the exception of a doctor’s determination that the mother’s life would end if the pregnancy continued. I believe that no matter what mistakes we make as a society, we cannot condone ending an innocent’s life.”

John McCain has supported broader exceptions. In 2000, he clashed with then-Gov. George W. Bush of Texas over whether the call for a constitutional “human life” amendment banning abortion in that year’s GOP platform should allow exceptions for a woman’s health and rape and incest victims.

McCain still holds that position, but did not fight for exceptions to be included in the human life amendment in this year’s party platform.

Palin’s strong pro-life credentials, reaffirmed in some minds by her handling of the situation involving her 17-year-old daughter, have energized social conservatives.

Republicans have highlighted the issue during this week’s convention in St. Paul, hoping that it reemerges as a wedge issue capable of deflecting votes from Democratic presidential candidate Sen. Barack Obama (Ill.).

The Obama campaign too has made moves to mobilize its supporters on the issue, running a radio ad in seven swing states telling voters that McCain will “make abortion illegal.”