President Trump routinely boasts of unshackling the economy by cutting red tape. But one industry may be about to face an onslaught of regulations, as senior members of his administration discuss a crackdown on electronic cigarettes.

The e-cigarette industry grew over the past decade into a significant part of the economy, with billions in annual revenue as large manufacturers and small local shops induced smokers to switch en mass from foul-smelling analog tobacco to vaporized nicotine-laced liquid.