Here's what I had to say about the phone call, in which someone pretended to be David Koch:
Walker opponents would love to make something of this phone call, but all they have are a few over-the-line things the Koch impersonator said like "You gotta crush that union." Walker just ignores that stuff and goes on with his standard points, which is probably the standard strategy that most politicians use when people interact with them....There was a big "teach-in" at the UW Law School.
Doesn't this prank call prove that Scott Walker is not close to Koch? He doesn't recognize his voice! He doesn't drift into a more personal style of speech. He treats him like a generic political supporter.