NOW THAT BIDEN IS SAFELY OUT OF THE WHITE HOUSE:  As Alison Somin writes here, any and all regulations promulgated by the federal government pursuant to Title VI of the Civil Rights Act of 1964 or to Title IX of the Education Amendments of 1972 are required to have the President’s signature.  If they don’t, they are, in my view, null and void.  Congress was (uncharacteristically) wise in insisting on a Presidential signature back when those statutes were passed.   For some reason, in recent decades this requirement has been ignored.  Incoming Administration officials should take note.