Well, he'll have to work with a Democratic legislature, so he couldn't implement Walker-style policies as Governor even if he tried.
Chis Christie did. Political patterns can change when a crisis happens... like when the state is a financial basket case. Tax hikes, bond rating downgrades, and cuts in services combine to awaken a few voters.
Walker froze (and cut) taxes, raised the financial rating (balanced a train wreck budget, and improved business climate), and didn't cut any services (some are improved).
This McKenna guy might just be talking about a perception of Walker, but if he isn't the real Scott Walker than what is he? Irresponsible?