Written by Cecilia Kang and Cade Metz At President Donald Trump’s inauguration, Sam Altman, CEO of OpenAI, was relegated to the overflow room while other tech billionaires like Elon Musk and Mark Zuckerberg took prime spots on the dais under the Capitol rotunda. But days earlier, before flying to Washington, Altman was on the phone with Trump, preparing an announcement that would outflank Musk and put Altman’s company at the center of the new administration’s agenda for artificial intelligence. Story continues below this ad On the 25-minute call, Altman appealed to Trump’s love of a big story and of a…