In 2010, when electronic cigarettes were little more than novelties, King County in Seattle, Washington USA, restricted sale and use of electronic cigarettes, along with nicotine electronic juices and other unapproved nicotine delivery devices. In doing so, Seattle became the first big-city jurisdiction to: 1) prohibit the sale of e-smoking devices to those under 18; and 2) ban the devices in restaurants and other public places and workplaces, mirroring tobacco smoking restrictions already in place.The ban aims to prevent youth from nicotine addiction and preserves county public spaces as fully smoke free. Now that recreational marijuana is legal in Washington, the state health department also is considering how this impacts the use of tobacco and e-cigarettes."Many e-cigarettes can now be refilled with liquid marijuana so it's difficult to tell exactly what people may be vaping in their e-cigarettes"Nobody really knows the long-term impact of inhaling marijuana.

1. What is the legal authority for what the State of Washington is doing?

2. Under what circumstances would the Federal gov't have any say at all in what Washington is doing?