Donald Trump initially considered breaking up Nvidia, the leading AI chip manufacturer, after learning about its dominance in the market. Trump recounted a conversation where an advisor informed him Nvidia held nearly 100% of the market. He expressed unfamiliarity with both Nvidia and its CEO, Jensen Huang. Trump's remarks were made during a speech outlining his new AI Action Plan in Washington, D.C., indicating a shift in his perspective after understanding Nvidia's role in the AI landscape.