Charles Evans Hughes, United States v. Alabama (313 U.S. 274…
“ That law in creating such liens for the taxes subsequently assessed in due course and making them effective as against subsequent purchasers did not contravene the Constitution of the United States and we perceive no reason why the United States, albeit protected with respect to proceedings against it without its consent, should stand, so far as the existence of the liens is concerned, in any different position from that of other purchasers of lands in Alabama who take conveyances on and after the specified tax date. ”
