by Jim Nintzel
Democrat Ron Barber responds to Republican Jesse Kelly's latest ad with an ad of his own in the special election to finish Gabrielle Giffords' congressional term.
It's the latest salvo in their battles over the future of Social Security and Medicare. Here's Kelly's ad, featuring his grandpa, Hank.
We'll have more on the Medicare and Social Security issues in this week's print edition of the Tucson Weekly.
An in-depth look at the Barber-Kelly race here.