Looking back at the race, the Senator tells CBS News' Katie Couric he was angered by attacks on Michelle Obama from a set of "Republican or right-wing media outlets." Click above to watch.
"I just feel like family are civilians, and they don't sign up for this stuff... They really should be bystanders in this process, even if they're campaigning for you."
Full interview airs on Monday's "CBS Evening News" at 6:30 pm ET.
