President Trump's antitrust enforcers are not backing down from legal fights with Big Tech, even as the administration signals a willingness to take a lighter touch with artificial intelligence. The administration is pressing ahead with two antitrust lawsuits already taken to trial against Google (GGOG, GOOGL) and prepping for new antitrust trials against Meta (META), Amazon (AMZN), and Apple (APPL). Trump officials at the Federal Trade Commission are also broadening a probe into Microsoft (MSFT) and its relationship with AI upstart OpenAI while challenging Microsoft's acquisition of gaming giant Activision Blizzard. "This isn't the Bush administration," Trump's FTC chair Andrew…