Expanding access to preschool has been one of the most effective policy initiatives by state and federal governments over the past generation. Studies show quality preschools serving children from poor families lift early learning. Families and government spend about $47 billion yearly on...

California is midway through one of the grandest public infrastructure projects ever attempted. Over the coming decade school officials will complete an $82 billion effort, building new schools and renovating old facilities, supported by taxpayers and private investors. But are state officials...