“Walker’s silence leads me to believe that at best Walker agrees with the slam and at worst sent the donor out to make it. That is Romney’s style. Since early hires are GOPe I’d say Walker is getting some bad advice.”
I think you’ve nailed it. Walker’s campaign is overflowing GOP INSIDERS, and it’s very likely they told walker to have the “little guys” do the attacking, and maybe Trump wouldn’t respond. And they DEFINITELY advised Walker not to apologize, but rather “stay above the fray”.
Oh well, that didn’t work, too.