The other Republican looks to be running to Walker's right. Walker himself was the insurgent candidate in the primary last time, and crushed Berger, so I'm skeptical. You also had several challenges to the more moderate-ish Coble that went nowhere in past cycles; his entrenchment and general badassness were helpful, but still.
Yeah, Walker won by running an annoying number of ads about Mexicans this and Mexicans that, which resonated with a lot of the factory workers around here. Apparently though he "sold out" by voting for Boehner for Speaker. I wish Walker would get knocked off. As a baptist I find it very troubling when baptist preachers run for public office, because they almost always suck.
