Originally Posted by Frank Etten
That's a poor example. A number of States directly regulate interstate commercial activity involving alcoholic beverages though their regulation of the buying, selling and commercial transportation of such products; but such regulation by a State is expressly permitted under the 21st Amendment.
Actually Frank I was not talking about interstate commercial activity at all. There are counties that prohibit mere possession. Just like California prohibits mere possession of certain firearms. Buy alcohol somewhere else and just drive through the indicated dry county and you will be in violation.