This from a guy, Scott Walker, who's been thinking about the next election since 1990

Meet Scott Walker, a fresh face.
(He lost an Assembly election to Gwen Moore in 1990.)

As quoted in Scott Walker: Wall between U.S. and Canada a 'legitimate' idea.  (Wisconsin State Journal, 8/31/2015)

Yup, thinking about the next generation -- as long as they have deep pockets!  (Wisconsin residency has never been a requirement.)

Scott Walker's most generous donors (state office tally)

Source:  Wisconsin Democracy Campaign