This is from Media Matters. According to walker in the previous video, he was misquoted by the Wausau Daily Herald.
The Scott Walker Immigration Shift ABC News Ignored

February 1, 2015 1:48 PM EST ›››
ALEXANDREA BOGUHN




ABC News left out key facts about Governor Scott Walker (R-WI)'s changing stance on immigration during their interview with the GOP presidential hopeful.

On the February 1 edition of ABC's This Week with George Stephanopoulos, guest host Martha Raddatz prompted Walker to discuss his proposals on immigration, asking "What would you do about the 11 million undocumented who are still here?" Walker replied that "We for sure need to secure the border. I think we need to enforce the legal system. I'm not for amnesty, I'm not an advocate of the plans that have been pushed here in Washington... we need to find a way for people to have a legitimate legal immigration system in this country, and that doesn't mean amnesty."

But this is a significant change in Walker's position on immigration. Previously, he questioned the need for greater border security, and supported a pathway to citizenship that was advocated by lawmakers in Washington.

As The Washington Post reported, during a 2013 interview with the Wausau Daily Herald editorial board, Walker advocated for a focus on "a saner way to let people into the country" rather than a focus on border security (emphasis added):
"It's all is about the 11 million [undocumented immigrants]," Walker said. "You hear some people talk about border security and a wall and all that. To me, I don't know that you need any of that if you had a better, saner way to let people into the country in the first place."
Walker added: "If people want to come here and work hard in this country, I don't care if you come from Mexico or Canada or Ireland or Germany or South Africa or anywhere else. I want them here."
In the same interview, Walker said "I think they need to fix things for people who are already here, find some way to deal with that." When asked specifically about the 11 million undocumented immigrants already in the country, and whether he could "envision a world where with the right penalties and waiting periods and meet the requirements where those people could get citizenship," Walker replied "sure ... I mean I think that makes sense."

http://mediamatters.org/blog/2015/02/01/the-scott-walker-immigration-shift-abc-news-ign/202370
this from Media Matters..