Dr. Marty Makary was at odds with officials in the Trump administration as pressure mounted from the president and the tobacco industry to allow the flavored vape products.

Makary’s exit ends a turbulent run marred by leadership upheaval, mass layoffs, political pressure and public spats with drugmakers.

Marty Makary is resigning as President Donald Trump's Food and Drug Administration chief. The surgeon and health researcher's tenure had drawn complaints from pharmaceutical…