In 2017 King and Idaho Senator Jim Risch introduced the Securing Energy Infrastructure Act. The Senate Energy and Natural Resources Committee approved the bill in 2018. The bill creates a pilot program for the federal government to study analog, nondigital and physical systems that can be incorporated into the power grid to mitigate the potential effects of a cyberattack. The idea for the bill came after a 2015 cyberattack in Ukraine took down a large portion of the country's energy grid. In April 2019 King was one of four senators caucusing with the Democrats who voted with Republicans to confirm David Bernhardt, an oil executive, as Secretary of the Interior Department.