The Race to the Top-Early Learning Challenge grants, authorized by Congress in 2011, are designed to improve the quality of early learning and development programs for children from birth through age 5. This discretionary grant program is administered jointly by the U.S. Department of Education and U.S. Department of Health and Human Services. This document provides a summary of States' progress on key performance measures, as well as some States' explanations for their progress on some of these measures. (author abstract)