When President Obama won 52 percent (to 45 percent for Romney) of Wisconsin voters in 2012 with a 73 percent turnout (Washington Post), Republicans complained about the surprising "urban" vote.
Urban means black in Republican lexicon, hence Obama garnered no mandate.
In 2014, Scott Walker has discerned a mandate from the fact that he won 52 percent of the 57 percent turnout of voters, or roughly 28.5 of the Wisconsin electorate (compared to Obama's 36 percent).
Moreover, that Wisconsin Republicans kept their majorities in the gerrymandered legislative districts demands Scott Walker be "even more aggressive" (Spicuzza, Wisconsin State Journal) in pursuing an agenda that 72 percent of the Wisconsin electorate rejected.
This is more than spin from Walker. This is a continuation of the con game that Walker is running on Wisconsin, backed by a corrupt U.S. District judge (Rudolph Randa) who never learned (or doesn't care) what abuse of discretion means.
It is also more confirmation that most people think government is run in the interests of a few, anti-social special interests who want to rig democracy.
Scott Walker doesn't believe he has a mandate any more than he thinks he could mount a credible run for president.
What he can do is run Wisconsin into the ground in the service of special interests, and leave behind a polluted environment and a diminished public education system, among other targets of the GOP's sociopathic wrecking ball.