Rush didn't say anything stupid, but don't let that keep you from doing it.
Rush simply pointed out that Walker won by campaigning as a Conservative and winning in a Blue state. You seem to have formed an opinion from comments made by detractors. Rush did not endorse Walker, just his Tactics.
Blathering on about Walker in such glowing terms so man hours a day, days a week, and now into weeks in a month, is huge at this stage of the game.
And no, Rush isn’t so dumb as to not get that.