More than 3,000 data centers already operate in the United States, with more than 1,500 others in development, according to the Pew Research Center, and at least seven Bay Area cities, including San Francisco and Richmond, have passed temporary moratoriums on data center construction in the final two months before the vote; in the race for Nancy Pelosi’s House seat, Scott Wiener opposes any ban while Connie Chan promises to seek a national moratorium pending artificial intelligence (AI) regulation.