A version of this article originally appeared in Quartz’s members-only Weekend Brief newsletter. Quartz members get access to exclusive newsletters and more. Sign up here. Cannabis companies have heard plenty of promises before. Federal legalization always seemed just around the corner, only to stall in Congress or get tangled in bureaucratic delays. Investors who bought into the hype got burned. Stock prices collapsed. The industry became synonymous with broken promises. But President Donald Trump's De ...