ANSWER:
The key rationales for a public provision of education is for a normative economics. Even though the federal and state government has not been showing equal support in all level of education, this is because their wish to share their responsibilities in education. The state government is seen to be more supportive in the primary and secondary education, while the federal government is seen to be more supportive in the collegiate education level.
The federal government may have choosed to show more interest in the collegiate education, because it is one of the rich institute that is use to attracts foreigners into the country. It has been estimated that student visa applicant has more percentage of Visa application to the U.S, and this student visa is mostly to study in the collegiate level.
The federal government has showed more interest in the collegiate level because, it has to do with more foreigners, which represent so many countries. The state government cannot have partnership with the government of another country, without the consent of the federal government. That is why the federal government has allowed the state government to take more responsibilities in the primary and secondary education, which does not attract foreigners, while it handles the collegiate level, which attracts foreigners.