This indicates that Walker, right now, is seen by Democrats as their biggest threat in 2016.
I support Cruz with Bush and Paul who will never get my vote, but Walker does seem the man who frightens the Dems and then it seems Cruz and for some reason Rubio.
The Dems keep lording up Paul[Especially at FOX] and Bush as they know either two are more inline with the lefts policies.
Scott Walker spanked and schooled the liberal Democrats not once, not twice, but three times in gaining and defending his position as governor of Wisconsin, a not inconsiderable feat in face of the unrelenting campaign against him each time. And each time, he won with larger and larger margins. This in the face of widespread demonstrations by UW-Madison professional students and union organizers that physically occupied the state capitol building, and carried on a very active anti-Walker campaign.
They are worried that walker could crush the union machinery in DC...