Housing, that is. Unfortunately, the feds have been meddling in the housing market for decades, starting under that non-laissez faire president, Herbert Hoover. In this piece, Hester Peirce of the Mercatus Institute makes the case for the feds getting completely out.

The Constitution gives no authority to any branch of the federal government to do anything regarding housing. Alas, politicians and judges have turned a blind eye to the limits on federal authority going back before Hoover.