California Gov. Gavin Newsom announced Tuesday that he wants to restrict students' usage of smartphones during the school day, citing the mental health risks of social media. The announcement, which was first reported by Politico, comes a day after U.S. Surgeon General Vivek Murthy called on Congress to require warning labels on social media platforms and their effects on young people. Newsom said he plans to build on a law he signed in 2019 that authorized school districts to limit or ban the use of smartphones by students while at school or under the supervision of a school employee. "As the Surgeon General affirmed, social media is harming the mental health of our youth," the Democratic governor said in a statement. "I look forward to working with the Legislature to restrict the use of smartphones during the school day. When children and teens are in school, they should be focused on their studies — not their screens." MORE: https://www.cbs8.com/article/news/local/california/newsom-wants-to-restrict-phones-in-school/509-8ca4257a-5a7f-46d1-874c-5ff271c14973