Elon Musk’s social media platform X, formerly Twitter, has lost a legal challenge to block a California law that requires content moderation disclosures. A US judge on Thursday denied a motion by X asking for a temporary suspension of a new California law requiring social media companies to issue semi-annual reports detailing their content moderation practices and their enforcement, along with data about objectionable posts. The law, signed in 2022 by California Governor Gavin Newsom, aims to address issues like hate speech, disinformation, harassment and extremism on social media sites. X had…