Summary Obama's Preschool for All Program in February during the President's State of the Union address. This program proposes to provide federal funding so that four-year-old children in the United States have the opportunity to attend preschool. Although some people support the proposed preschool program, many studies and researchers find that it will not be effective. Supporters of Obama's preschool program appear to ignore previously published research on the effectiveness of preschool education before elementary school. These results include the Head Start National Impact Study and research on the federal Child Development Block Grant program. These two studies reveal that preschool has no visible impact on later academic success. Research from the second study reveals that there are even negative impacts on children placed in child care supported by the federal Child Development Block Grant program. There are also preschool programs, in Georgia and Oklahoma, that are nearly equivalent to Obama's Preschool for All program. These programs had very little, if any, positive....