This summer, the Supreme Court of the United States, in an act that has gained wide praised for its fairness, decided that Gov. Bob McDonnell had been wrongly convicted. He had broken no law and the Court was rightly concerned that if anti-corruption laws were applied so broadly, it would have the effect of deterring good people from running for public office. The worst example of such egregious prosecution was the railroading of an innocent city commissioner, Keith Wasserstrom. He was a pillar of his community who had stood up to local party bosses and paid a heavy price. What...