First off, define what that means.
Second, what traditionally happens is that a candidate moving from a Rep. to a Senator gets less conservative. Why is that? It's because the electorate is less conservative as a whole. Conservatives have to understand that. At best, we're a minority.
That said, a minority can do a lot to influence policy, but first you have to control the thoughtspace. We've done that with gun control and abortion. We need to do it with things like freedom to work, etc.
Politics is a game of the possible. You can push the envelope, but politicians rarely lead. Walker has lead. America is designed to deny revolutions. Inertia wins. Redirect that inertia our way and we'll always win.
I mean like Ronald Reagan, taking on the elites in the party. Or Ted Cruz, Or Sarah Palin, Or Mike Le, or Louis Gohmert.