JEFFERSON CITY -- U.S. Sen. Claire McCaskill has been traveling Missouri highlighting stark policy differences with her Republican challenger, Rep. Todd Akin. She's cites their stances on federal student loans, school lunches, post offices, taxes, the minimum wage and a seemingly endless list of issues.

One thing McCaskill has seldom discussed is their differences on abortion – even though that's the issue that propelled Missouri's Senate race into the national spotlight when Akin uttered an inflammatory and since-apologized-for remark about women's bodies being able to thwart pregnancy in cases of “legitimate rape.”

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