Mariannette Miller-Meeks at the Iowa State Fair. Republican congressional candidate Mariannette Miller-Meeks says she’s concerned about social "insecurity" and that’s one reason she supports the idea of allowing younger workers to invest a portion of their Social Security taxes themselves, rather than paying into the system.

Miller-Meeks says something must be done, as the system may be insolvent when younger Americans retire in 40 years. "There is a need for moving," Miller-Meeks says. "Every year that we do not address social ‘insecurity’ causes that debt load to increase exponentially."

Miller-Meeks is open to the idea of raising the retirement age, too. "How many of you are under age 50 and how many of you are concerned that there’s not going to be anything there for you despite contributing into the system your entire working life?" Miller-Meeks asks.

Miller-Meeks, an ophthalmologist with a practice in Ottumwa, faces Democratic Congressman Dave Loebsack of Mount Vernon in the November election. She made her comments while campaigning at the Iowa State Fair.