I suspect a significant number of union members used your strategy in the WI voting. Whom they voted for ‘was another matter’, different from the dictates of the union thuggery bosses.
I had read Monday here on FR that about 50% of Wisconsin's AFSCME members had opted out of the union and no longer had dues deducted from their paychecks, and 1/3 of WI teachers did the same, opting out of the WI Teachers Union. It didn't take much logic or reason to conclude these folks weren't going to vote to recall Walker and that the polls showing Barret closer to Walker than the outcome showed to be incorrect.
BTW: I predicted here on FR yesterday morning at 8:35AM Florida time (while I was still on vacation) that Walker would win by 9. He won by just over 8%. Not bad considering my only sources of knowledge for the WI election were the Wall Street Journal and Freepers posting from within Wisconsin.