Walker was among the most conservative members of the Legislature while he served, according to the research of two political scientists who have measured the ideology of more than 20,000 past and current state lawmakers across the country.According to their data, Walker was more conservative than close to 90% of his Assembly colleagues in Wisconsin and about four-fifths of his fellow Republicans.
Via Scott Walker's legislative years: A staunch conservative, then as now @ JS Wisconsin Voter Blog.