Although a Catholic legislator’s vote in favor of legalizing abortion still falls short of the “formal cooperation” that carries with it automatic ex-communication, the church still considers such a vote a stain on the legislator’s soul. As such, unless he confesses his sin and does penance for it, he may not receive communion without committing the second mortal sin of sacrilege, a point that many American bishops and priests seem to have forgotten.After months of accusing Republicans of using “phony, trumped-up culture wars” to divide the electorate, the Democrats have chosen abortion, the mother of all culture war issues, as...