In moving to ban a potent synthetic version of kratom, the president’s team paved the way for more sales for makers of rival botanic supplements,…

In a dispute over vapes, the president sided with tobacco companies that filled his groups’ coffers over his own F.D.A. commissioner, who resigned in protest.

In a dispute over vapes, the president sided with tobacco companies that filled his groups’ coffers over his own F.D.A. commissioner, who resigned in protest.