One aspect that is being overlooked in prankgate is that Walker clearly asked the person he believed to be billionaire David Koch to run phony "issue advocacy" ads that would benefit Walker and the Republican Party.
David Koch, of course is the kingpin of "Americans For Prosperity," which dumps millions of dollars from Koch's corporation, Koch Industries, into Wisconsin and other states in the form of phony "issue advocacy ads." These ads are supposedly done independently and without coordination from GOP officials such as Walker, because it is tantamount to soliciting corporate cash, which is, of course, very illegal.
Was this done on a state phone and was Walker in the Governor's office when he took the call?
Regardless of where Walker was, why was Walker directly soliciting an issue advocacy ad from a corporate donor? That's solicitiation and coordination of corporate cash and he should be prosecuted Blago-style asap.