Wallace pressed Walker — who is weighing a presidential bid in 2016 — on his opposition to comprehensive immigration reform, pointing out that the governor had said in a 2013 interview with a Wisconsin editorial board that he supported it.
Walker insisted Sunday that border security was an important first step to repairing the United States' flawed immigration system.
"But you said you supported" comprehensive reform, Wallace insisted.
"And my view has changed. I'm flat out saying it. A candidate can say that. Sometimes they don't," Walker said.