Ultra-progressive California Governor Gavin Newsom is in Las Vegas ahead of Super Bowl and is spending his time in Sin City hobnobbing with billionaires and Tom Brady, as speculation mounts that Joe Biden will stand down. California Governor Gavin Newsom is pictured with San Francisco 49ers CEO Jed York in Las Vegas Saturday night, as the pair attended a Super Bowl partyNewsom is seen here with comedian Kevin Hart. Newsom was also expected to attend Rubin’s huge Fanatics Super Bowl party at the Cosmopolitan hotel today. A source told DailyMail.com of the California Governor: ‘He’s friends with Michael. If Biden chooses not to run in the November election, Newsom is seen as a strong possible contender for the Democrat nomination.