The idea for what became President Donald Trump’s Tuesday pact with the AI industry came from a conversation between Meta CEO Mark Zuckerberg and House Speaker Mike Johnson at last week’s state dinner, a source familiar with the matter told Semafor.Zuckerberg spoke to Johnson — whom he was seated next to at the dinner for Chinese leader Xi Jinping — about regulatory concerns around AI, according to the source. The Meta CEO then talked to Nvidia CEO Jensen Huang about crafting a set of principles...