I guess Pres. Obama didn’t get the memo. Here is an advertisement for a product for purchase on Pres. Obama’s campaign website store:

Notice the fabric make-up of the scarf: Circle scarf made of 45% certified organic cotton / 55% hemp [emphasis mine]. Imagine the outcry if it had 55% marijuana rather than 55% hemp. (My guess is that somehow or other—and I’m sure I’ll get at least one email on this—the scarf is legal. But you get my point.)