"It might have been" are not always the saddest words. Sometimes, they're the most horrifying. Hillary Clinton in September will come out with a new book called "What Happened," about her loss to Donald Trump. That got me thinking: What would have happened had she won? For instance, what if Clinton became president, Chuck Schumer assumed leadership of the Senate, and Nancy Pelosi once again wielded a gavel in the House of Representatives? Sooner than you can say "political payback to Planned Parenthood," the United States would have had taxpayer-funded abortion on demand through all nine months of pregnancy. Don't...