No he isn't and No, he won't. That horse already left the barn when Walker started moderating himself and his positions and running away from the conservative fight when he decided to run for POTUS:
Scott Walker to tea partiers: Let’s focus on taking out Democrats, not our fellow Republicans
Scott Walker Says Gay Marriage Ban is Part of 'a Healthy Balance' of Anti-Bias Laws in Wisconsin: VIDEO
Scott Walker: Gay Marriage Fight Is 'Over In Wisconsin'
Walker Says Legislature Shouldn't Focus On Right-To-Work Bill Next Session
You haven't seen Cruz walk away from the conservative fight.
CRUZ or LOSE!