Under which provision of the Constitution would the Federal Government do this?
Every department gets all kinds of federal grants. It would likely be part of that. They use it against America when it’s to force LGBT and sicko things in the classroom. They use it to mandate abortion in return for education grants.
Might as well work for the good guys once in a while.
This also allows Feds to execute scrotes who murder cops unfortunate enough to live in states that abolished the death penalty like Colorado and New Mexico.