Three months after Australia launched a landmark ban on teen social media accounts, regulators across Europe, in Brazil and in a handful of U.S. states are moving to emulate it. California Governor Gavin Newsom - seen as a likely Democratic candidate for president in 2028 - joined the call, opens new tab last month, while Republican President Donald Trump is also reportedly “taking an interest”, opens new tab in age limits, according to his daughter-in-law.