President Donald Trump’s China summit arrived with a Silicon Valley entourage. The US president landed in Beijing this week with Nvidia’s Jensen Huang, Apple’s Tim Cook, and Tesla’s Elon Musk, among others. Their presence turns a diplomatic meeting with Chinese President Xi Jinping into a high-stakes negotiation over market access, AI chips, and global tech influence. Trump said he planned to ask Jinping to “open up China” so American firms could expand business opportunities in the country. Trump described the executives traveling with him as “brilliant people” who could “work their magic.” The trip marks the first visit by a sitting US president to China in nearly a decade, and it comes at a tense moment in relations between the world’s two largest economies. Trade disputes, export controls, artificial intelligence competition, and the wars in Iran and Gaza all hang over the summit.…