Three months after the Chinese artificial intelligence developer DeepSeek upended the tech world with a model that rivaled America’s best, a 28-year-old AI executive named Alexandr Wang came to Capitol Hill to tell policymakers what they needed to do to maintain US dominance.The US, Wang said at the April hearing, needs to establish a “national AI data reserve,” supply enough power for data centers and avoid an onerous patchwork of state-level rules. Lawmakers welcomed his feedback. “It’s good t