Walker Concedes He's Made Mistakes

I don't know if I would call doing what you campaigned to do a mistake but he is entitled to his opinion. 
Since becoming involved in politics if there is one thing I have learned is that it did not matter what methods he used to enact his policies because the Liberals/Progressives would have done
exactly what they did and are doing.  When you are a Liberal - have the biased media on your side - it would appear that you really never lose an election.  Just hold your breath and scream for a recall election.