Even an idiot knew Scott Walker's 250,000 jobs promise was a truly ridiculous campaign trick. Freeloading Republicans love that kind of stuff. But in the real world, a Democratic opponent would never try to match it, or risk insulting the intelligence of their voters.
So for an encore, the Walker reelection campaign had to come up with another completely unmatchable feat. And they did; getting rid of the state income tax.
And that's what got the headlines. What didn't get as much attention were the caveats; maybe not all income taxes would go away, and oh by the way, the sales tax would have to increase.
It was the BIG PROMISE of eliminating the income tax that stuck with the majority of conservative low information voters.
In the words of George W. Bush, "Fool me once, shame on — shame on you. Fool me — you can't get fooled again.” Or something like that...