The federal criminalization of marijuana has evidently failed, with recent reports indicating that 72% of the marijuana market in the U.S. remains illicit. Facing widespread nullification of federal marijuana prohibition, popular support for legalization and the accompanying excise revenues, policymakers are continue to consider reforms. As the Tax Foundation reported, members of Congress introduced the STATES 2.0 Act last December. The bill would remove marijuana from the Controlled Substances Act, federally legalize its sale and use and permit interstate commerce.