inco de Mayo is just an excuse for Americans to consume more Mexican food and drink. It’s nothing more than that. Even for Mexicans in America, it isn’t a day they celebrate. That didn’t stop Nancy Pelosi from seizing upon an opportunity to pander for Latino support. In what was surely a research project for one of her aides, she put out a statement on Friday imploring the heartless Republicans to pass amnesty on this “important day.” Most Americans don’t celebrate any holidays in the way in which they were intended or designated. They are paid holidays from work or...