When their is money to be fleeced from hard-working folks in the guise of regulation and taxes the Feds always take a piece, legally or otherwise.
Cocaine is legal, but only if the Feds say so. The caine family is found in several pharmaceuticals in use in the USA.
Everything the US government has done up to this point to interfere with Americans playing
poker online has had everything to do with a long range plan to drag it under US jurisdiction in order to regulate and TAX it.
Now that their latest
bluff (nah, this was a LIE) that the Wire Act somehow magically applied to internet
gambling, has been abandoned by the DOJ, I suspect that they will move to as rapidly as they can to start creating a steady revenue for the USG from "legal" online gaming.