Pacing a stage at the Iowa State Fair, flanked by his wife and four of their six children, Republican US Congressman Zach Nunn spoke passionately about an issue that has emerged as a key concern in his competitive midterms race: cancer.
"Look, my mom is a survivor. I know that it has touched all of us, our family, our friends," he said at the August event, touting his efforts to bring more money for cancer screening to Iowa's third congressional district.