The Wisconsin Election Commission had issued guidance that voters who cast primary election ballots and who had voted for candidates subsequently dropped from the election campaign, but too late for them to be removed from the ballots, could “spoil” their ballots, get a replacement ballot, and vote again.
This guidance is illegal: under Wisconsin law, a voter can do that only before he’s cast his ballot—casting it is final and irrevocable. A Wisconsin judge recognized that, and said, “No.”