 And Iowa Congressman Zach Nunn is calling on the federal government to protect Social Security and Medicare. Nunn, along with North Carolina Congressman Don Davis, co-sponsor the Safeguarding Social Security and Medicare Act. The Bonderant Republican tells KMA News the measure requires the U.S. Comptroller General to create a plan to protect Social Security and Medicare from inflation. Nunn says most Iowans know somebody who depends on both programs. You know, $670.