Sen. Mark Udall (D., Colo.) said that the biggest "non-issue" that Congress continues to debate is the terrorist attack on the U.S. consulate in Benghazi on September 11, 2012.
"Let's move on," Udall said to a chuckling crowd during Wednesday night's debate.
Republican challenger Cory Gardner quickly challenged Udall's answer.
"The families of this country deserve an answer on Benghazi," Gardner said. "I think it's outrageous that people died and Sen. Udall is refusing to provide answers for the families of this country."