so Walker, Ryan were not helping cruz?
Walker is not GOP establishment, per se. He was an outsider conservative state Assemblyman, then he was an outsider conservative in a nonpartisan position as Milwaukee County Executive. Walker, like Cruz, was able to draw support from all parts of the GOP in his 2010 run for governor, his 2011 recall and his 2014 re-election. He did not move to the Establishment center, the Establishment moved behind Walker - very similar to Cruz's presidential campaign.
Ryan has moved over the past 4 years to become the GOP establishment, but did not help Cruz in the Wisconsin primary. As House Speaker, Ryan stated he would not and could not make an endorsement of any candidate. I'm positive he voted for Cruz, but he made no appearances or announcements on Cruz's behalf.