Sen. Claire McCaskill (D-Mo.) is going after Rep. Todd Akin (R) in a new TV ad that includes footage of Akin’s controversial August interview, in which he argued that “legitimate rape” rarely causes pregnancy.

The new McCaskill ad includes a clip from that interview showing Akin saying: “If it’s a legitimate rape, the female body has ways to try to shut that whole thing down.”

The rest of the ad features women expressing worry and fear about Akin’s positions on women’s issues.

“I worry about the misinformation he evidently believes,” says one woman.

“I’m afraid of what he will do in Congress,” says another.

With eight days left until Election Day, McCaskill appears to have the edge in a race that was once viewed as a top pickup opportunity for the GOP. One nonpartisan poll released over the weekend showed a close race, while a Democratic survey shows McCaskill leading by a wider margin.

A Mason-Dixon Polling and Research survey conducted for the St. Louis Dispatch, Kansas City Star and KMOV-TV showed McCaskill at 45 percent and Akin at 43 percent. McCaskill’s campaign countered with a internal poll showing the senator leading Akin 52 percent to 39 percent.