Tobacco giant, Altria Group, Inc. MO has purchased a 35% stake for $12.5 million in Juul Labs. But Trump's threat has pushed its stock down by 1%. As of last year, Juul's marketing was under investigation by the Federal Trade Commission for misguiding young people to buy vaping products. On Sep 9, the FDA issued a warning letter to Juul stating that it has broken law by promoting its vaping products as less harmful than traditional tobacco products.